What’s Vulnerable › Vulnerabilities

CVE-2025-9087: Tenda AC20 SetNetControlList Endpoint set_qosMib_list stack-based overflow

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-08-16 · updated 2026-06-17
• Weakness: CWE-119

Description

A vulnerability has been found in Tenda AC20 16.03.08.12. This affects the function set_qosMib_list of the file /goform/SetNetControlList of the component SetNetControlList Endpoint. The manipulation of the argument list leads to stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.

Affected products

• Tenda AC20: 16.03.08.12

References

• https://github.com/ZZ2266/.github.io/tree/main/AC20/formSetQosBand
• https://github.com/ZZ2266/.github.io/tree/main/AC20/formSetQosBand#poc-python-exploit-script
• https://vuldb.com/?ctiid.320355
• https://vuldb.com/?id.320355
• https://vuldb.com/?submit.632037
• https://www.tenda.com.cn/

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