CVE-2025-15356: high-severity vulnerability in Tenda AC20
Tenda AC20 PowerSaveSet sscanf buffer overflow
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.7epss 4.0%
A vulnerability has been found in Tenda AC20 up to 16.03.08.12. The impacted element is the function sscanf of the file /goform/PowerSaveSet. The manipulation of the argument powerSavingEn/time/powerSaveDelay/ledCloseType leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may 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 · AC20Related CVEs — Tenda AC20
In the same product, most dangerous first.
CVE-2025-9090MEDIUMTenda AC20 Telnet Service telnet websFormDefine command injectionEPSS 16.7%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 1.2%CVE-2025-8131HIGHTenda AC20 SetStaticRouteCfg stack-based overflowEPSS 1.2%
References
https://github.com/xyh4ck/iot_poc/blob/main/Tenda%20AC20_Buffer_Overflow/Tenda%20AC20_Buffer_Overflow.md#pochttps://github.com/xyh4ck/iot_poc/tree/main/Tenda%20AC20_Buffer_Overflowhttps://vuldb.com/?ctiid.338742https://vuldb.com/?id.338742https://vuldb.com/?submit.726360https://www.tenda.com.cn/