1. Home
  2. Vulnerabilities
  3. CVE-2025-31355
9.8
CRITICAL CVSS 3.1
CVE-2025-31355
Tenda AC6 Firmware Signature Validation Code Execution Vulnerability
Description

A firmware update vulnerability exists in the Firmware Signature Validation functionality of Tenda AC6 V5.0 V02.03.01.110. A specially crafted malicious file can lead to arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability.

INFO

Published Date :

Aug. 20, 2025, 2:15 p.m.

Last Modified :

Aug. 21, 2025, 6:22 p.m.

Remotely Exploit :

Yes !

Source :

[email protected]
Affected Products

The following products are affected by CVE-2025-31355 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Tenda ac6_firmware
2 Tenda ac6
: Total Affected Vendor : 1 | Products : 2
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 HIGH [email protected]
CVSS 3.1 CRITICAL [email protected]
Solution
Update firmware to patch arbitrary code execution vulnerability via crafted files.
  • Update the device firmware to the latest version.
  • Ensure firmware integrity before applying updates.
  • Restrict access to firmware update functionality.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2025-31355.

URL Resource
https://talosintelligence.com/vulnerability_reports/TALOS-2025-2161 Third Party Advisory
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-31355 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2025-31355 weaknesses.

CAPEC-184: Software Integrity Attack Software Integrity Attack CAPEC-185: Malicious Software Download Malicious Software Download CAPEC-186: Malicious Software Update Malicious Software Update CAPEC-187: Malicious Automated Software Update via Redirection Malicious Automated Software Update via Redirection CAPEC-533: Malicious Manual Software Update Malicious Manual Software Update CAPEC-538: Open-Source Library Manipulation Open-Source Library Manipulation CAPEC-657: Malicious Automated Software Update via Spoofing Malicious Automated Software Update via Spoofing CAPEC-662: Adversary in the Browser (AiTB) Adversary in the Browser (AiTB) CAPEC-691: Spoof Open-Source Software Metadata Spoof Open-Source Software Metadata CAPEC-692: Spoof Version Control System Commit Metadata Spoof Version Control System Commit Metadata CAPEC-693: StarJacking StarJacking CAPEC-695: Repo Jacking Repo Jacking

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-31355 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2025-31355 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Initial Analysis by [email protected]

    Aug. 21, 2025

    Action Type Old Value New Value
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Added CPE Configuration AND OR *cpe:2.3:o:tenda:ac6_firmware:02.03.01.110:*:*:*:*:*:*:* OR cpe:2.3:h:tenda:ac6:5.0:*:*:*:*:*:*:*
    Added Reference Type Talos: https://talosintelligence.com/vulnerability_reports/TALOS-2025-2161 Types: Third Party Advisory
  • New CVE Received by [email protected]

    Aug. 20, 2025

    Action Type Old Value New Value
    Added Description A firmware update vulnerability exists in the Firmware Signature Validation functionality of Tenda AC6 V5.0 V02.03.01.110. A specially crafted malicious file can lead to arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability.
    Added CVSS V3.1 AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
    Added CWE CWE-494
    Added Reference https://talosintelligence.com/vulnerability_reports/TALOS-2025-2161
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 9.8
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact