What’s Vulnerable › Vulnerabilities

CVE-2025-10815: Tenda AC20 HTTP POST Request SetPptpServerCfg strcpy buffer overflow

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-09-22 · updated 2026-10-11
• Weakness: CWE-119

Description

A vulnerability was identified in Tenda AC20 up to 16.03.08.12. Affected by this issue is the function strcpy of the file /goform/SetPptpServerCfg of the component HTTP POST Request Handler. Such manipulation of the argument startIp leads to buffer overflow. The attack can be launched remotely. The exploit is publicly available and might be used.

Affected products

• Tenda AC20: through 16.03.08.12

References

• https://github.com/Juana-2u/Tenda-AC20
• https://vuldb.com/?ctiid.325173
• https://vuldb.com/?id.325173
• https://vuldb.com/?submit.654460
• https://www.tenda.com.cn/

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