CVE-2025-9791: high-severity vulnerability in Tenda AC20
Tenda AC20 fromAdvSetMacMtuWan stack-based overflow
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.7epss 0.9%
A weakness has been identified in Tenda AC20 16.03.08.05. This vulnerability affects unknown code of the file /goform/fromAdvSetMacMtuWan. This manipulation of the argument wanMTU causes stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been made available to the public and could be exploited.
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 · AC20Related CVEs — Tenda AC20
In the same product, most dangerous first.
CVE-2025-9090MEDIUMTenda AC20 Telnet Service telnet websFormDefine command injectionEPSS 16.9%CVE-2025-15356HIGHTenda AC20 PowerSaveSet sscanf buffer overflowEPSS 4.0%CVE-2025-14655HIGHTenda AC20 httpd SetSysAutoRebbotCfg formSetRebootTimer stack-based overflowEPSS 3.3%CVE-2025-14654HIGHTenda AC20 httpd setPptpUserList formSetPPTPUserList stack-based overflowEPSS 3.3%CVE-2025-8160HIGHTenda AC20 httpd SetSysTimeCfg buffer overflowEPSS 1.5%CVE-2025-9089HIGHTenda AC20 SetIpMacBind sub_48E628 stack-based overflowEPSS 1.3%