CVE-2026-4565

EUVD-2026-14343
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.8 HIGH
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 24%
Affected Products (NVD)
VendorProductVersion
tendaac21_firmware
16.03.08.16
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://github.com/hellonestor/killallbug/issues/14
https://github.com/hellonestor/killallbug/releases/tag/poc
https://vuldb.com/?ctiid.352402
https://vuldb.com/?id.352402
https://vuldb.com/?submit.775119
https://www.tenda.com.cn/