Author: Ameeba

Overview

The Common Vulnerabilities and Exposures (CVE) system has recently identified a significant security flaw, designated as CVE-2025-9298, affecting Tenda M3 1.0.0.12. This flaw pertains to a buffer overflow vulnerability within the function formQuickIndex of the file /goform/QuickIndex, specifically involving the manipulation of the argument PPPOEPassword. This vulnerability is crucial as it can be exploited remotely, posing a significant threat to data confidentiality and system integrity.

Vulnerability Summary

CVE ID: CVE-2025-9298
Severity: High (CVSS 8.8)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

Tenda M3 | 1.0.0.12

How the Exploit Works

The vulnerability stems from inadequate boundary checks within the formQuickIndex function of the file /goform/QuickIndex in Tenda M3 1.0.0.12. By manipulating the PPPOEPassword argument, an attacker can trigger a stack-based buffer overflow. This can potentially allow an attacker to execute arbitrary code with the privileges of the process, leading to a system compromise or data leakage.

Conceptual Example Code

The following is a
conceptual
example of how the vulnerability might be exploited. This could be a malicious HTTP request sent to the vulnerable endpoint, exploiting the buffer overflow vulnerability.

POST /goform/QuickIndex HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
PPPOEPassword=<buffer overflow inducing string>

In this example, “ represents a string of characters that is longer than the application expects, causing the buffer overflow.

Mitigation

To mitigate this vulnerability, users are advised to apply the vendor patch when it becomes available. In the meantime, deploying a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can offer temporary protection. These systems can detect and block attempts to exploit this vulnerability, thereby limiting potential damage.

Overview

A critical vulnerability has been identified in Tenda i22 1.0.0.3(4687), a widely used router. The vulnerability, tracked as CVE-2025-9297, affects the formWeixinAuthInfoGet function of the /goform/wxportalauth file. This flaw allows potential attackers to manipulate the ‘Type’ argument, leading to a stack-based buffer overflow. This can be exploited remotely and may result in a system compromise or data leakage, posing a significant risk to the confidentiality, integrity, and availability of user data and systems.

Vulnerability Summary

CVE ID: CVE-2025-9297
Severity: Critical, CVSS 8.8
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: System compromise and potential data leakage

Affected Products

Product | Affected Versions

Tenda i22 | 1.0.0.3(4687)

How the Exploit Works

The vulnerability stems from improper input validation in the formWeixinAuthInfoGet function. When processing an argument labeled ‘Type,’ the function fails to adequately check the size of the user-supplied data. This allows an attacker to provide an excessively long string, causing the program to overwrite the stack’s memory. This could allow an attacker to execute arbitrary code with the privileges of the affected service, leading to potential unauthorized access, information disclosure, or denial of service.

Conceptual Example Code

Here is a conceptual example of how the vulnerability might be exploited using a maliciously crafted HTTP request:

POST /goform/wxportalauth HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
Type=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...[Long string of 'A's causing buffer overflow]

The above example demonstrates a buffer overflow attack, where the ‘Type’ parameter is supplied with a long string of ‘A’s, which exceeds the buffer’s limit, leading to the overflow.

Mitigation Guidance

The most effective mitigation for this vulnerability is to apply the vendor-supplied patch. Until the patch can be applied, it is recommended to use a Web Application Firewall (WAF) or Intrusion Detection System (IDS) to detect and block attempts to exploit this vulnerability. Configuring these systems to look for unusually long ‘Type’ argument values can help identify and block malicious requests.

Overview

The world of cybersecurity is a constant battlefield, where new vulnerabilities are discovered and old ones are patched. One such recently discovered vulnerability, CVE-2025-43300, is a critical issue affecting multiple versions of macOS and iOS. This vulnerability, caused by an out-of-bounds write issue, can lead to memory corruption when processing a malicious image file.
The vulnerability is not just a theoretical risk. Apple has confirmed that there have been reports of this vulnerability being exploited in highly sophisticated attacks against specific individuals. This makes it a significant concern for all users of the affected systems, as potential exploitation could result in system compromise and data leakage.

Vulnerability Summary

CVE ID: CVE-2025-43300
Severity: High (CVSS: 8.8)
Attack Vector: Local Network
Privileges Required: None
User Interaction: Required
Impact: System compromise and potential data leakage

Affected Products

Product | Affected Versions

macOS Sonoma | 14.7.8
macOS Ventura | 13.7.8
iPadOS | 17.7.10
macOS Sequoia | 15.6.1
iOS | 18.6.2
iPadOS | 18.6.2

How the Exploit Works

This vulnerability stems from an out-of-bounds write issue, a common type of software bug that occurs when data is written past the end of an allocated data buffer. In the case of CVE-2025-43300, the flaw is located within the image file processing functions.
When a user opens a specially crafted image file, it triggers the flaw, leading to memory corruption. An attacker can leverage this to inject malicious code into the system, effectively gaining control over it. This can then be used to steal sensitive data or compromise the system further.

Conceptual Example Code

This vulnerability might be exploited using a specially crafted image file, as shown below in pseudocode:

Create malicious_image_file
Write out_of_bounds_data to malicious_image_file

The user then opens the malicious image file, which triggers the out-of-bounds write and subsequent memory corruption:

Open malicious_image_file
Read data from malicious_image_file

While the above example is highly simplified, it serves to illustrate the concept of the exploit. The actual exploit would involve careful crafting of the image file to trigger the flaw and execute the desired malicious payload.

Overview

A recently disclosed vulnerability, identified as CVE-2025-27216, poses a significant threat to the cybersecurity landscape. This vulnerability has been found in the UISP application, a popular software extensively used across various industry verticals. It revolves around a critical resource, which, due to improper permissions, could be exploited by a malicious actor to escalate privileges. This matters greatly, as it potentially exposes systems to compromise and increases the risk of sensitive data leakage. As such, security professionals and systems administrators dealing with UISP are strongly urged to familiarize themselves with the details of this vulnerability and apply the necessary mitigation strategies.

Vulnerability Summary

CVE ID: CVE-2025-27216
Severity: High (8.8 CVSS)
Attack Vector: Local
Privileges Required: Low
User Interaction: Required
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

UISP | All versions prior to update X.Y.Z

How the Exploit Works

This vulnerability stems from incorrect permission assignments for a critical resource within the UISP application. An attacker with certain permissions (classed as lower-level permissions) can manipulate these permissions to escalate their privileges within the application. This escalated access may grant the attacker more power and control over the application and the underlying system, potentially leading to system compromise or data leakage.

Conceptual Example Code

The following pseudocode example illustrates how an attacker might exploit this vulnerability:

# Attacker logs into the system with low-level permissions
$ ssh lowPrivUser@target.example.com
# Attacker locates critical resource with incorrect permissions
$ ls -l /path/to/critical/resource
# Attacker manipulates permissions to escalate privileges
$ sudo chown lowPrivUser /path/to/critical/resource
$ sudo chmod 777 /path/to/critical/resource
# Now, the attacker has full control over the critical resource

Please note that this is a simplified, conceptual example. Real-world exploits may be more complex and require a more detailed understanding of the system’s configuration and the UISP application’s internals.

Mitigation Guidance

The most effective way to mitigate this vulnerability is to apply the vendor-supplied patch. UISP has released an update that corrects the permission assignments and closes the avenue for privilege escalation. It is strongly recommended to update to the latest version of UISP as soon as possible.
As a temporary measure, a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can be used to monitor and potentially block exploit attempts. However, this is not a permanent solution and does not address the root cause of the vulnerability. Therefore, it should be seen as a stopgap measure until the patch can be applied.

Overview

A critical security vulnerability, designated as CVE-2025-9253, has been identified in a range of Linksys Wi-Fi range extenders. This issue has been found to affect RE6250, RE6300, RE6350, RE6500, RE7000, and RE9000 models with specific firmware versions. The vulnerability resides in the RP_doSpecifySiteSurvey function of the /goform/RP_doSpecifySiteSurvey file. An attacker can exploit this vulnerability and compromise the system or cause data leakage, posing significant risks for users.
The breach is particularly dangerous because the attack can be initiated remotely, and the exploit has been publicly disclosed. Despite being informed about this vulnerability, the vendor has remained silent, leaving the devices exposed to potential attacks.

Vulnerability Summary

CVE ID: CVE-2025-9253
Severity: High (8.8/10)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: System compromise, data leakage

Affected Products

Product | Affected Versions

Linksys RE6250 | 1.0.013.001, 1.0.04.001, 1.0.04.002
Linksys RE6300 | 1.0.013.001, 1.0.04.001, 1.0.04.002
Linksys RE6350 | 1.0.013.001, 1.0.04.001, 1.0.04.002
Linksys RE6500 | 1.0.013.001, 1.0.04.001, 1.0.04.002
Linksys RE7000 | 1.0.013.001, 1.0.04.001, 1.0.04.002, 1.1.05.003
Linksys RE9000 | 1.0.013.001, 1.0.04.001, 1.0.04.002, 1.1.05.003, 1.2.07.001

How the Exploit Works

The vulnerability stems from the improper handling of the ‘ssidhex’ argument in the function RP_doSpecifySiteSurvey. When an attacker manipulates ‘ssidhex’ and sends an overly long argument, it overflows the stack-based buffer. This overflow can lead to arbitrary code execution, granting the attacker control over the system.

Conceptual Example Code

The following is a conceptual example of how an attacker might exploit the vulnerability. This is not a working exploit but an illustration of the vulnerability:

POST /goform/RP_doSpecifySiteSurvey HTTP/1.1
Host: target_linksys_device_ip
Content-Type: application/x-www-form-urlencoded
ssidhex=41414141...[A*5000]

In this example, the ‘ssidhex’ argument is filled with a large number of ‘A’ characters (41 in hexadecimal), causing a buffer overflow.

Overview

The cybersecurity landscape continues to evolve at a rapid pace, with new vulnerabilities emerging on an almost daily basis. One such vulnerability that has been identified recently is CVE-2025-9252. This vulnerability affects multiple versions of Linksys range extenders and poses a serious threat to their security. If exploited, it can potentially lead to a complete system compromise or serious data leakage. This vulnerability is particularly concerning because it can be exploited remotely, and the exploit has already been made public.
Given its severity and the fact that the vendor has yet to respond to the vulnerability disclosure, it is crucial that users of the affected products apply appropriate mitigation measures to protect their systems. In this blog post, we will provide an in-depth analysis of this vulnerability, how it works, and how it can be mitigated.

Vulnerability Summary

CVE ID: CVE-2025-9252
Severity: Critical (CVSS v3 Score: 8.8)
Attack Vector: Remote
Privileges Required: None
User Interaction: None
Impact: Potential system compromise, data leakage

Affected Products

Product | Affected Versions

Linksys RE6250 | 1.0.013.001
Linksys RE6300 | 1.0.04.001
Linksys RE6350 | 1.0.04.002
Linksys RE6500 | 1.1.05.003
Linksys RE7000 | 1.2.07.001
Linksys RE9000 | 1.2.07.001

How the Exploit Works

The vulnerability lies in the DisablePasswordAlertRedirect function in the /goform/DisablePasswordAlertRedirect file of the affected Linksys range extenders. By manipulating the ‘hint’ argument of this function, an attacker can trigger a stack-based buffer overflow. This overflow can overwrite critical system information, potentially leading to arbitrary code execution, and hence, system compromise.

Conceptual Example Code

Below is a conceptual example of how the vulnerability might be exploited. This is a hypothetical HTTP POST request to the vulnerable endpoint with a malicious payload.

POST /goform/DisablePasswordAlertRedirect HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "hint": "A"*1024 }

In this example, the ‘hint’ argument is filled with a large number of ‘A’ characters, triggering a stack-based buffer overflow. Note that this is a simplified representation and actual exploit code may be more complex.

Recommended Mitigation

Until the vendor provides a patch, users of the affected Linksys devices are advised to use a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as a temporary mitigation measure to detect and block exploit attempts. These measures, however, are not a permanent solution, and users should apply the vendor patch as soon as it becomes available.

Overview

In the ever-evolving landscape of cybersecurity, a new high-risk vulnerability, CVE-2025-9251, has been discovered in a range of Linksys Wi-Fi extenders. This vulnerability impacts several Linksys models including RE6250, RE6300, RE6350, RE6500, RE7000, and RE9000. It has been identified that this security flaw can be triggered remotely, thus raising a critical concern for users and network administrators. Given its high CVSS severity score, it is crucial to understand the extent of this vulnerability, the systems it affects, and the potential ways to mitigate this exploit.

Vulnerability Summary

CVE ID: CVE-2025-9251
Severity: High (CVSS: 8.8)
Attack Vector: Remote, Network Access
Privileges Required: None
User Interaction: None
Impact: Potential System Compromise or Data Leakage

Affected Products

Product | Affected Versions

Linksys RE6250 | 1.0.013.001
Linksys RE6300 | 1.0.04.001
Linksys RE6350 | 1.0.04.002
Linksys RE6500 | 1.1.05.003
Linksys RE7000 | 1.2.07.001
Linksys RE9000 | 1.0.04.002

How the Exploit Works

The security flaw resides in the function ‘sta_wps_pin’ of the file ‘/goform/sta_wps_pin’. This function, when manipulated with an argument ‘ssid’, results in a stack-based buffer overflow. A buffer overflow is a type of software vulnerability that exists when the data written to a buffer exceeds its capacity, thus allowing an attacker to overwrite adjacent memory locations.

Conceptual Example Code

The following is a conceptual example of how the vulnerability might be exploited. Please note that this is a hypothetical scenario and does not represent a real exploit.

POST /goform/sta_wps_pin HTTP/1.1
Host: vulnerablelinksys.com
Content-Type: application/json
{ "Ssid": "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA..." }

In the above example, the Ssid parameter is filled with a large number of ‘A’ characters, thereby causing a buffer overflow in the target system.

Mitigation

While it is evident that the vendor has yet to respond to this disclosure, it is strongly recommended that users apply vendor-provided patches as soon as they become available. In the meantime, users can implement a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as temporary mitigation. Regular monitoring of network traffic for any anomalies can also aid in detecting any potential attacks.

Overview

The cybersecurity landscape is constantly evolving with new threats and vulnerabilities emerging daily. One of the most recent vulnerabilities to come to light is CVE-2025-53120, a path traversal vulnerability in the unauthenticated upload functionality of the Unified PAM server. This vulnerability, if exploited, allows a malicious actor to upload binaries and scripts to the server’s configuration and web root directories, leading to remote code execution.
Due to the severity of the potential impact, this vulnerability is of significant concern for organizations using the Unified PAM server. The potential for system compromise or data leakage poses a significant risk to the confidentiality, integrity, and availability of sensitive information.

Vulnerability Summary

CVE ID: CVE-2025-53120
Severity: Critical (9.4 CVSS)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

Unified PAM Server | All versions prior to patch

How the Exploit Works

The exploit takes advantage of a path traversal vulnerability in the unauthenticated upload functionality. By crafting a specific payload, an attacker is able to bypass the server’s directory restrictions. This allows the attacker to upload malicious binaries and scripts to the server’s configuration and web root directories, which are typically restricted areas. Once uploaded, these malicious files can be executed remotely, giving the attacker control over the server.

Conceptual Example Code

This conceptual example demonstrates a malicious HTTP POST request that could exploit the vulnerability:

POST /unauthenticated/upload HTTP/1.1
Host: target.example.com
Content-Type: application/octet-stream
Content-Disposition: form-data; name="file"; filename="../../webroot/malicious_script.sh"
{ binary data }

In this example, the attacker uses a relative path (‘../../webroot/malicious_script.sh’) as the filename to traverse back to the web root directory. The server, failing to validate and sanitize the filename, saves the uploaded file to this location, effectively allowing the attacker to place and later execute a malicious script on the server.

Mitigation Guidance

It is strongly recommended that entities using the Unified PAM Server apply the latest vendor patch to mitigate this vulnerability. In the absence of a patch, entities can use a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as a temporary measure, configuring them to detect and block traffic patterns consistent with the exploitation of this vulnerability. However, these measures should be seen as temporary and complement the pending application of the vendor patch, which directly addresses and eliminates the vulnerability.
In addition, entities should review and strengthen their security controls around file uploads, including implementing input validation and sanitization routines that prevent directory traversal attacks. Regular security audits and penetration testing can also help uncover and mitigate such vulnerabilities before they can be exploited.

Overview

The CVE-2025-50722 vulnerability is a critical flaw in the sparkshop e-commerce platform, specifically version 1.1.7. This vulnerability can allow an attacker to remotely execute arbitrary code via the Common.php component, which may lead to a complete system compromise. It is a significant security concern for any business or individual utilizing this particular version of the sparkshop software, as it can potentially lead to unauthorized access, data leakage, and further exploitation of the system.

Vulnerability Summary

CVE ID: CVE-2025-50722
Severity: Critical (9.8 CVSS Score)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Remote code execution, potential system compromise or data leakage

Affected Products

Product | Affected Versions

Sparkshop | v.1.1.7

How the Exploit Works

The vulnerability exists due to insecure permissions in the Common.php component of the Sparkshop platform. This insecure configuration can be exploited by a remote attacker without requiring any user interaction or special privileges. By crafting a specific HTTP request containing malicious payload and sending it to the server, the attacker can trick the system into executing the arbitrary code.

Conceptual Example Code

Here’s a conceptual example of how an HTTP request might exploit this vulnerability:

POST /Common.php HTTP/1.1
Host: target.example.com
Content-Type: application/json
{
"command": "system('rm -rf /');"
}

In the above example, the “command” parameter is manipulated to carry out a dangerous operation, effectively deleting all files in the server. However, this is merely an illustrative example, and the actual malicious payload could be any command that the attacker wishes to execute on the compromised system.

Mitigation

Users of Sparkshop v.1.1.7 are advised to apply the latest security patch from the vendor as soon as possible. Until the patch can be applied, users can use a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as temporary mitigation to monitor and block malicious requests. It’s also recommended to regularly update all software components to their latest versions to prevent exploitation of known vulnerabilities.

Overview

The cybersecurity landscape is continually evolving with new vulnerabilities cropping up every other day. One such vulnerability that has come to the fore is CVE-2025-26496. This is a ‘Type Confusion’ vulnerability that affects Salesforce Tableau Server and Desktop on both Windows and Linux platforms. This vulnerability is of high significance due to its potential to allow local code inclusion, opening up systems and data to potential compromise and leakage.
The severity of this vulnerability is underscored by its CVSS severity score of 9.3, which falls into the critical range. It’s a wake-up call for organizations using the affected Salesforce Tableau versions to take immediate action to mitigate any potential risks.

Vulnerability Summary

CVE ID: CVE-2025-26496
Severity: Critical (9.3 CVSS score)
Attack Vector: Local Code Inclusion
Privileges Required: User level
User Interaction: Required
Impact: Potential system compromise and data leakage

Affected Products

Product | Affected Versions

Tableau Server | Before 2025.1.3
Tableau Desktop | Before 2024.2.12, Before 2023.3.19

How the Exploit Works

The vulnerability stems from the use of an incompatible type to access a resource in the File Upload modules of the affected Tableau products. This ‘Type Confusion‘ can be exploited by an attacker to include local code within the system. Once the code is included, it allows for manipulation of system behavior, potentially leading to system compromise and data leakage.

Conceptual Example Code

Given the nature of the vulnerability, an attacker could potentially exploit it by uploading a malicious file. Here’s an example of how this might look:

POST /file_upload HTTP/1.1
Host: vulnerable.tableau.example.com
Content-Type: application/octet-stream
{ "file": "malicious_file.exe" }

In this hypothetical example, the attacker is uploading a malicious executable file (.exe) via the file upload module. If the system is vulnerable and does not properly handle the incompatible file type, this could lead to the inclusion and execution of the malicious code.
Please note that this is a simplified example for illustrative purposes. Real-world attacks can be much more complex and may not necessarily follow this exact pattern.