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CVE-2026-2873

HIGH

8.8

Description

A vulnerability was detected in Tenda A21 1.0.0.0. This issue affects the function setSchedWifi of the file /goform/openSchedWifi. Performing a manipulation of the argument schedStartTime/schedEndTime results in stack-based buffer overflow. It is possible to initiate the attack 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

Published2/21/2026

Last Modified2/23/2026

Sourcenvd

Honeypot Sightings0

Affected Products

tenda:a21tenda:a21_firmware

Weaknesses (CWE)

CWE-119CWE-121

References

https://github.com/QIU-DIE/cve-nneeww/issues/4(cna@vuldb.com)

https://vuldb.com/?ctiid.347110(cna@vuldb.com)

https://vuldb.com/?id.347110(cna@vuldb.com)

https://vuldb.com/?submit.754635(cna@vuldb.com)

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

IOC Correlations

No correlations recorded

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