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CVE-2026-4565

Tenda AC21 SetNetControlList formSetQosBand buffer overflow

CVSS 8.7 HIGHEPSS 0.9%CWE-119CWE-120
A vulnerability was detected in Tenda AC21 16.03.08.16. Impacted is the function formSetQosBand of the file /goform/SetNetControlList. Performing a manipulation of the argument list results in buffer overflow. The attack can be initiated remotely. The exploit is now 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 · AC21

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References
https://github.com/hellonestor/killallbug/issues/14https://github.com/hellonestor/killallbug/releases/tag/pochttps://vuldb.com/?ctiid.352402https://vuldb.com/?id.352402https://vuldb.com/?submit.775119https://www.tenda.com.cn/