Cyber Resilience

CVE-2025-51085

MediumPublic PoC

Published: 24 July 2025

Published
24 July 2025
Modified
28 July 2025
KEV Added
—
Patch
—
CVSS Score v3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
EPSS Score 0.0062 70.5th percentile
Risk Priority 11 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-51085 is a medium-severity Stack-based Buffer Overflow (CWE-121) vulnerability in Tenda Ac8 Firmware. Its CVSS base score is 5.3 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 29.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

Tenda AC8V4 V16.03.34.06` was discovered to contain stack overflow at /goform/SetSysTimeCfg. The manipulation of the argument `timeZone` and `timeType` leads to stack-based buffer overflow.

CWE(s)
CWE-121

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
Why these techniques?

The stack-based buffer overflow vulnerability in the web management interface (/goform/SetSysTimeCfg) of the Tenda AC8V4 router enables remote code execution via exploitation of a public-facing application.

Affected Assets

tenda
ac8 firmware
16.03.34.06

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References