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CVE-2026-4565

HIGH

8.8

Description

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.

CVE Details

CVSS v3.1 Score8.8

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published3/23/2026

Last Modified4/3/2026

Sourcenvd

Honeypot Sightings0

Affected Products

tenda:ac21tenda:ac21_firmware

Weaknesses (CWE)

CWE-119CWE-120

References

https://github.com/hellonestor/killallbug/issues/14(cna@vuldb.com)

https://github.com/hellonestor/killallbug/releases/tag/poc(cna@vuldb.com)

https://vuldb.com/?ctiid.352402(cna@vuldb.com)

https://vuldb.com/?id.352402(cna@vuldb.com)

https://vuldb.com/?submit.775119(cna@vuldb.com)

https://www.tenda.com.cn/(cna@vuldb.com)

IOC Correlations

No correlations recorded

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