CVE-2025-29031
Published: 14 March 2025
Summary
CVE-2025-29031 is a critical-severity Out-of-bounds Write (CWE-787) vulnerability in Tenda Ac6 Firmware. Its CVSS base score is 9.8 (Critical).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 33.3th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-16 (Memory Protection).
Threat & Defense at a Glance
Threat & Defense Details
Mitigating Controls (NIST 800-53 r5)AI
Information input validation directly prevents the buffer overflow in the fromAddressNat function by enforcing bounds checking on network inputs.
Memory protection safeguards like non-executable memory and address space randomization mitigate exploitation of the buffer overflow for arbitrary code execution.
Flaw remediation ensures timely patching of the vulnerable Tenda AC6 v15.03.05.16 firmware to eliminate the buffer overflow vulnerability.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Unauthenticated buffer overflow in the router's web management interface (/goform/addressNat) via user-controlled parameters enables exploitation of a public-facing application, potentially leading to remote code execution or denial of service.
NVD Description
Tenda AC6 v15.03.05.16 was discovered to contain a buffer overflow via the fromAddressNat function.
Deeper analysisAI
CVE-2025-29031 is a buffer overflow vulnerability (CWE-787) affecting Tenda AC6 router firmware version v15.03.05.16, specifically in the fromAddressNat function. Published on 2025-03-14T14:15:18.430, it carries a CVSS v3.1 base score of 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), marking it as critical due to its potential for severe impact.
The vulnerability enables remote exploitation over the network with low complexity, requiring no authentication privileges or user interaction. Attackers can achieve high confidentiality, integrity, and availability impacts, potentially resulting in arbitrary code execution or complete device compromise.
Mitigation details are available in the referenced advisory at https://github.com/WhereisDoujo/CVE/issues/5.
Details
- CWE(s)