Author: Ameeba

Overview

CVE-2025-52449 is a serious vulnerability that affects Salesforce Tableau Server on both Windows and Linux platforms, specifically within the Extensible Protocol Service modules. This vulnerability allows for unrestricted upload of files with dangerous types, leading to alternative execution due to deceptive filenames. The risk associated with this vulnerability is high as it can lead to a potential system compromise or data leakage, a nightmare scenario for any organization relying on the integrity and confidentiality of its data.

Vulnerability Summary

CVE ID: CVE-2025-52449
Severity: High (8.5 CVSS Score)
Attack Vector: Network
Privileges Required: None
User Interaction: Required
Impact: Compromise of system integrity and potential data leakage

Affected Products

Product | Affected Versions

Tableau Server on Windows | before 2025.1.3
Tableau Server on Linux | before 2025.1.3
Tableau Server on all platforms | before 2024.2.12, before 2023.3.19

How the Exploit Works

The exploit takes advantage of a vulnerability in the Extensible Protocol Service modules of Salesforce’s Tableau Server. By allowing unrestricted file uploads of dangerous types, an attacker can upload a malicious file with a deceptive filename, which could lead to remote code execution (RCE) if the file is run.
The deceptive filename could trick a user into thinking they are opening a benign file, when in fact they are executing malicious code. This could lead to a compromise of the entire system, potentially providing the attacker with full control over the affected server. Furthermore, the exploit could also lead to data leakage, potentially exposing sensitive information.

Conceptual Example Code

POST /extensible_protocol/upload HTTP/1.1
Host: target.example.com
Content-Type: application/octet-stream
Content-Disposition: form-data; name="file"; filename="benign_file.pdf.exe"
{ "malicious_payload": "..." }

In this conceptual example, a malicious payload is being uploaded to the server under the guise of a benign PDF file. However, the true file type is an executable, which could be run on the server once uploaded, leading to remote code execution.

Overview

A severe vulnerability, designated as CVE-2025-8246, has been identified in the TOTOLINK X15 model version 1.0.0-B20230714.1105. This vulnerability is of particular concern due to its critical rating and the potential for attackers to exploit it remotely. The vulnerability lies within a file of an unknown function, /boafrm/formRoute, which forms part of the HTTP POST Request Handler component. The exploitation of this vulnerability could lead to system compromise or data leakage, making this issue a high-priority concern for all users of the affected product.

Vulnerability Summary

CVE ID: CVE-2025-8246
Severity: Critical (8.8 CVSS Score)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: System compromise and data leakage

Affected Products

Product | Affected Versions

TOTOLINK X15 | 1.0.0-B20230714.1105

How the Exploit Works

The vulnerability within TOTOLINK X15 1.0.0-B20230714.1105 software is exploited through the manipulation of the argument ‘submit-url. This manipulation leads to a buffer overflow condition, a state where data written to a buffer corrupts data values in memory addresses adjacent to the buffer due to exceeding the buffer’s boundary. Buffer overflows enable attackers to overwrite valuable information, execute malicious code, or cause system crashes.

Conceptual Example Code

Here is a conceptual example of how an HTTP POST request may be manipulated to exploit this vulnerability:

POST /boafrm/formRoute HTTP/1.1
Host: target-device-ip
Content-Type: application/x-www-form-urlencoded
submit-url=/%00...[long string of null bytes]...%00

In this example, the ‘submit-url’ field is being filled with a long string of null bytes (%00), causing a buffer overflow in the system’s memory. This could potentially allow an attacker to overwrite critical data or inject malicious code into the system.

Mitigation and Recommendations

To mitigate this vulnerability, users of the affected product are advised to apply the patch provided by the vendor as soon as it becomes available. In the meantime, it is recommended to use Web Application Firewall (WAF) or Intrusion Detection System (IDS) as temporary mitigation measures. Regular monitoring of network traffic and system logs can also help in detecting any unusual activities. Always ensure to maintain a good cybersecurity hygiene by regularly updating and patching your systems, and by adhering to the best practices in securing your network.

Overview

In the rapidly evolving landscape of cybersecurity, a critical vulnerability, CVE-2025-8245, has been discovered to pose a significant risk to users of TOTOLINK X15 1.0.0-B20230714.1105. This vulnerability, if exploited, could lead to severe consequences including potential system compromise or data leakage. Given that the exploit has been disclosed to the public, this vulnerability requires immediate attention and remediation to prevent malicious exploitation.

Vulnerability Summary

CVE ID: CVE-2025-8245
Severity: Critical (CVSS: 8.8)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

TOTOLINK X15 | 1.0.0-B20230714.1105

How the Exploit Works

The CVE-2025-8245 vulnerability lies in an unknown functionality of the file /boafrm/formMultiAPVLAN of the component HTTP POST Request Handler. Specifically, the manipulation of the ‘submit-url’ argument leads to buffer overflow, a type of vulnerability where the volume of data exceeds the storage capacity of the buffer, leading to data overflow into adjacent storage.
Attackers can exploit this vulnerability by sending a specially crafted HTTP POST request with an oversized ‘submit-url’ argument. This causes the associated buffer to overflow, potentially leading to arbitrary code execution or system crashes.

Conceptual Example Code

The following is a conceptual example showing how this vulnerability might be exploited. Note that the actual malicious payload would be specific to the system configuration and the attacker’s objectives.

POST /boafrm/formMultiAPVLAN HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
submit-url=<oversized_string>

In the example above, `` represents a string that exceeds the buffer’s capacity, leading to an overflow.

Mitigation Guidance

Users are strongly advised to apply the vendor-supplied patch as soon as possible to address this vulnerability. In cases where immediate application of the patch is not feasible, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation by detecting and blocking attempts to exploit this vulnerability.
Remember, staying vigilant and keeping your systems updated are key to maintaining a secure digital environment.

Overview

A critical vulnerability, CVE-2025-8244, has been discovered in TOTOLINK X15 1.0.0-B20230714.1105. This vulnerability poses a serious threat to the integrity, confidentiality, and availability of the affected systems. As the vulnerability is found in a commonly used router, it has the potential to impact a large number of users globally. The severity of this vulnerability lies in its ability to be exploited remotely, with the potential for system compromise or data leakage.

Vulnerability Summary

CVE ID: CVE-2025-8244
Severity: Critical (8.8 CVSS score)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

TOTOLINK X15 | 1.0.0-B20230714.1105

How the Exploit Works

The exploit takes advantage of a buffer overflow vulnerability within an unknown function of the file /boafrm/formMapDelDevice in the HTTP POST request handler component of the TOTOLINK X15. Specifically, it involves the improper handling and validation of the argument ‘macstr. An attacker can manipulate this argument to cause a buffer overflow condition, potentially leading to arbitrary code execution.

Conceptual Example Code

Here is a conceptual example of how the vulnerability might be exploited:

POST /boafrm/formMapDelDevice HTTP/1.1
Host: vulnerable-router-ip
Content-Type: application/x-www-form-urlencoded
macstr=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA... [continue until buffer overflow is triggered]

This example is oversimplified for illustrative purposes. In a real attack scenario, the ‘A’ characters would typically be replaced with carefully crafted input designed to execute arbitrary commands or code.

Mitigation

Users are recommended to apply the vendor patch as soon as possible to mitigate this vulnerability. In the absence of a patch, users may employ Web Application Firewalls (WAF) or Intrusion Detection Systems (IDS) as temporary mitigation measures. However, these should be seen as temporary solutions, as they may not fully protect against all potential attack vectors related to this vulnerability. For comprehensive protection, the vendor-supplied patch should be applied.

Overview

A critical vulnerability, identified as CVE-2025-8243, has been unearthed in the TOTOLINK X15 1.0.0-B20230714.1105, affecting the HTTP POST request handler component. This vulnerability, caused by an unknown processing of the file /boafrm/formMapDel, is of significant concern due to its severity and the potential for remote execution. Given the widespread use of TOTOLINK products, this vulnerability could have far-reaching implications, potentially enabling malicious actors to compromise systems or leak sensitive information.

Vulnerability Summary

CVE ID: CVE-2025-8243
Severity: Critical (CVSS: 8.8)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise and data leakage

Affected Products

Product | Affected Versions

TOTOLINK X15 | 1.0.0-B20230714.1105

How the Exploit Works

The vulnerability lies in the HTTP POST request handler’s processing of the file /boafrm/formMapDel. By manipulating the argument ‘devicemac1’, an attacker can trigger a buffer overflow condition. This condition can lead to unpredictable system behavior, including system crashes, data corruption, or potentially allowing an attacker to execute arbitrary code.

Conceptual Example Code

Below is a conceptual example of how this vulnerability might be exploited. This is a sample POST request, where the ‘devicemac1’ argument is manipulated with a maliciously crafted value to induce a buffer overflow.
“`http
POST /boafrm/formMapDel HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
devicemac1=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA

Overview

We’re diving into the details of a critical SQL Injection vulnerability identified as CVE-2025-6918. This flaw is found in Ncvav’s Virtual PBX Software, a widely used system in many organizations for their telecommunication needs. The risk this vulnerability presents is significant, as it opens up potential for system compromise and data leakage, which could lead to devastating consequences for any business.
The importance of understanding and mitigating this vulnerability cannot be overstated. According to the Common Vulnerability Scoring System (CVSS), it has a Severity Score of 9.8, indicating its critical nature. In the cybersecurity world, anything above 7 is considered high risk, so this score tells us that immediate attention and action are required.

Vulnerability Summary

CVE ID: CVE-2025-6918
Severity: Critical (CVSS: 9.8)
Attack Vector: Network
Privileges Required: Low
User Interaction: None
Impact: System compromise or data leakage

Affected Products

Product | Affected Versions

Virtual PBX Software | Before 09.07.2025

How the Exploit Works

The vulnerability stems from the software’s improper neutralization of special elements used in an SQL command. This failure allows an attacker to manipulate SQL queries in the software’s database by injecting malicious SQL code. The attacker can then potentially gain unauthorized access to sensitive data or even execute commands in the system. Given the nature of PBX systems, this could compromise sensitive information like call records, voicemails, or even system configurations.

Conceptual Example Code

Below is a
conceptual
example of how the vulnerability might be exploited. This could be a malicious SQL command hidden within a seemingly harmless request to the system.

POST /pbx/api/request HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
username=admin&password=123456' OR '1'='1'; --

In the above example, the attacker is attempting to log in with a username of “admin” and a password that includes an SQL injection. The “‘ OR ‘1’=’1′; –” portion of the command is the SQL injection, which will always evaluate to true, potentially granting the attacker unauthorized access.

How to Mitigate CVE-2025-6918

The most effective way to mitigate this vulnerability is to apply the vendor’s patch. Ncvav has already released a patch for this critical issue for versions of Virtual PBX Software from 09.07.2025 onwards.
In cases where immediate patching is not feasible, deploying a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation method. These systems can help by detecting and blocking SQL Injection attempts. However, they should not be used as a long-term solution in place of patching the system. Regular updates and patches are essential for maintaining a secure cybersecurity infrastructure.

Overview

One of the most significant vulnerabilities in recent times, CVE-2025-8242, is a critical buffer overflow vulnerability found in TOTOLINK X15 1.0.0-B20230714.1105. This vulnerability can affect any system that is using the affected versions of TOTOLINK X15. Buffer overflow vulnerabilities are severe and can potentially lead to system compromise or data leakage. Given the widespread use of TOTOLINK X15, this vulnerability has the potential to impact a large number of systems globally.

Vulnerability Summary

CVE ID: CVE-2025-8242
Severity: Critical, CVSS Score 8.8
Attack Vector: Remote
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

TOTOLINK X15 | 1.0.0-B20230714.1105

How the Exploit Works

The exploit works by manipulating the arguments ‘ip6addr’, ‘url’, ‘vpnPassword’, or ‘vpnUser’ in the HTTP POST request handler. This manipulation leads to a buffer overflow within the system. Buffer overflows occur when the volume of data exceeds the storage capacity of the buffer, causing the extra information to overflow into adjacent storage spaces. This overflow can overwrite other relevant data on the system, corrupting valid data and leading to erratic system behavior or even system crashes.

Conceptual Example Code

Here’s a conceptual example of how the vulnerability might be exploited using a malicious HTTP POST request:

POST /boafrm/formFilter HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
ip6addr=2001:0db8:85a3:0000:0000:8a2e:0370:7334&url=http://malicious.example.com&vpnPassword=overflownData&vpnUser=admin

In the above example, the ‘vpnPassword’ parameter is filled with an excessive amount of data which could potentially overflow the buffer and corrupt the system’s memory. The attacker could exploit this corrupted memory to execute arbitrary code or cause a denial of service.

Mitigation Guidance

The recommended mitigation for this vulnerability is to apply the vendor patch as soon as it becomes available. In the meantime, using a web application firewall (WAF) or intrusion detection system (IDS) could provide temporary mitigation. These systems can identify and block malicious HTTP requests, preventing attackers from exploiting this vulnerability. However, these are just temporary measures, and the vendor’s patch should be applied as soon as possible to fully secure the system.

Overview

This blog post will look into a critical vulnerability, CVE-2025-8184, which affects D-Link DIR-513 up to version 1.10. This vulnerability has potentially severe implications for data security and system integrity, especially considering the fact that it is remotely executable and the exploit has been disclosed to the public. This issue is of significant concern for users of the affected products, which, unfortunately, are no longer supported by their manufacturers.

Vulnerability Summary

CVE ID: CVE-2025-8184
Severity: Critical (8.8 / 10 on the CVSS scale)
Attack Vector: Remote
Privileges Required: None
User Interaction: None
Impact: Potential system compromise and data leakage

Affected Products

Product | Affected Versions

D-Link DIR-513 | Up to 1.10

How the Exploit Works

The vulnerability lies in the HTTP POST request handler component of D-Link DIR-513, specifically within the function formSetWanL2TPcallback of the file /goform/formSetWanL2TPtriggers. An attacker can exploit this vulnerability by manipulating the HTTP POST request, which leads to a stack-based buffer overflow. This overflow can potentially lead to unauthorized execution of code, allowing for system compromise and potential data leakage.

Conceptual Example Code

Here’s a conceptual example of how the vulnerability might be exploited. This example represents a malicious HTTP request that could potentially trigger a buffer overflow:

POST /goform/formSetWanL2TPtriggers HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
data=OVERLY_LONG_STRING_THAT_CAUSES_BUFFER_OVERFLOW

In this example, the OVERLY_LONG_STRING_THAT_CAUSES_BUFFER_OVERFLOW would be replaced with an actual string that’s longer than the buffer can handle, causing it to overflow and potentially allowing arbitrary code execution.

Steps to Mitigate

Given that the affected products are no longer supported by D-Link, applying a vendor patch is not an option. However, employing a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as temporary mitigation against this vulnerability. It’s also recommended to replace unsupported devices with current, supported ones whenever possible to maintain a secure network environment.

Overview

A critical vulnerability, identified as CVE-2025-8180, has been found in the Tenda CH22 1.0.0.1. This vulnerability targets the formdeleteUserName function of the file /goform/deleteUserName via the manipulation of the argument old_account, leading to a buffer overflow condition. This issue is especially troubling as it allows for remote attacks, potentially leading to system compromise or data leakage. The exploit has already been publicly disclosed and may be in active use, making it a significant threat to any individual or organization using the affected version of the software.

Vulnerability Summary

CVE ID: CVE-2025-8180
Severity: Critical (CVSS: 8.8)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: System compromise, potential data leakage

Affected Products

Product | Affected Versions

Tenda CH22 | 1.0.0.1

How the Exploit Works

The vulnerability occurs due to inadequate input validation in the formdeleteUserName function of the /goform/deleteUserName file. This allows an attacker to manipulate the old_account argument, creating a buffer overflow condition. This condition can allow the attacker to execute arbitrary code on the system, which could potentially compromise the system or lead to unauthorized access to sensitive data.

Conceptual Example Code

In a real-world example, an attacker might use a POST request to target the vulnerability. The malicious request might look something like this:

POST /goform/deleteUserName HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
old_account=<buffer_overflow_payload>

In this example, “ represents a string of data designed to trigger the buffer overflow condition. This payload would be carefully crafted by the attacker to exploit the buffer overflow vulnerability, potentially allowing the attacker to execute arbitrary code on the system.

Mitigation Guidance

The best course of action for mitigating this vulnerability is to apply the vendor patch as soon as it becomes available. If applying the patch isn’t immediately possible, implementing a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can offer a temporary solution to mitigate the risk posed by this vulnerability. It is also advisable to always be vigilant about the security of the system by regularly updating and patching the software.

Overview

Recent cybersecurity findings have revealed a critical vulnerability, classified as CVE-2025-8178, impacting Tenda AC10 routers. This vulnerability lies in an unidentified function of the /goform/RequestsProcessLaid file, where argument manipulation can lead to a heap-based buffer overflow. As Tenda AC10 routers are commonly used in both residential and commercial settings, this vulnerability has significant implications. If exploited, it can potentially compromise systems or lead to significant data leakage.

Vulnerability Summary

CVE ID: CVE-2025-8178
Severity: Critical (8.8 CVSS Score)
Attack Vector: Remote
Privileges Required: None
User Interaction: None
Impact: Potential system compromise and data leakage

Affected Products

Product | Affected Versions

Tenda AC10 | 16.03.10.13

How the Exploit Works

The vulnerability exploits a flaw in the argument processing of the /goform/RequestsProcessLaid function of the Tenda AC10 router. Specifically, the manipulation of the argument ‘device1D’ results in a heap-based buffer overflow. This type of overflow happens when more data is written into a block of memory, or buffer, than it is designed to hold. Attackers can then overwrite adjacent memory locations, potentially leading to arbitrary code execution, system crashes, or data leakage.

Conceptual Example Code

The following is a conceptual example of how the vulnerability might be exploited. This is a hypothetical HTTP POST request that provides an overly long ‘device1D’ argument, leading to buffer overflow:

POST /goform/RequestsProcessLaid HTTP/1.1
Host: target_router_IP
Content-Type: application/x-www-form-urlencoded
device1D=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...[continue until buffer overflow]

Note: The ‘A’ character is commonly used in demonstrating buffer overflows as it is easy to spot in memory dumps.

Mitigation Guidance

Users are advised to apply the vendor’s patch to fix the vulnerability as soon as possible. If the patch cannot be applied immediately, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as temporary mitigation. These security measures can help monitor network traffic and block any suspicious activities that may exploit the vulnerability.