What’s Vulnerable › Vulnerabilities

CVE-2025-13446: Tenda AC21 SetSysTimeCfg stack-based overflow

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 4.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-11-20 · updated 2026-10-18
• Weakness: CWE-119

Description

A vulnerability has been found in Tenda AC21 16.03.08.16. This vulnerability affects unknown code of the file /goform/SetSysTimeCfg. The manipulation of the argument timeZone/time leads to stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been disclosed to the public and may be used.

Affected products

• Tenda AC21: 16.03.08.16

References

• https://github.com/Madgeaaaaa/MY_VULN_2/blob/main/Tenda/VULN8.md
• https://github.com/Madgeaaaaa/MY_VULN_2/blob/main/Tenda/VULN9.md
• https://vuldb.com/?ctiid.333018
• https://vuldb.com/?id.333018
• https://vuldb.com/?submit.694425
• https://vuldb.com/?submit.694430
• https://www.tenda.com.cn/
• https://github.com/Madgeaaaaa/MY_VULN_2/blob/main/Tenda/VULN8.md
• https://github.com/Madgeaaaaa/MY_VULN_2/blob/main/Tenda/VULN9.md

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