← back
CVE-2026-1637

Tenda AC21 AdvSetMacMtuWan fromAdvSetMacMtuWan stack-based overflow

CVSS 8.7 HIGHEPSS 0.6%CWE-119CWE-121
Vexday Risk Score
21Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 8.7EPSS 0.6%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
29 Jan 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
A vulnerability was identified in Tenda AC21 16.03.08.16. The affected element is the function fromAdvSetMacMtuWan of the file /goform/AdvSetMacMtuWan. The manipulation leads to stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit is publicly available and might be used.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
Affected products
Tenda · AC21

Want to know if your infrastructure is exposed to this?

Talk to TrueHacking →
References
https://github.com/LX-LX88/cve/issues/25https://vuldb.com/?ctiid.343416https://vuldb.com/?id.343416https://vuldb.com/?submit.740865https://www.tenda.com.cn/