CVE-2026-2886

7.4 highEPSS 0.6%

A weakness has been identified in Tenda A21 1.0.0.0. This affects the function set_device_name of the file /goform/SetOnlineDevName. This manipulation of the argument devName causes stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks.

Severity

CVSS 4.0

7.4 high

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

CVSS 3.1

8.8 high

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

EPSS: 0.6% chance of exploitation in the next 30 days; higher than 50% of CVEs (scores of 2026-10-31)
CWEs: CWE-119, CWE-121
Published: 2026-02-21
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

tenda:a21_firmware

References

https://github.com/QIU-DIE/cve-nneeww/issues/6
https://vuldb.com/?ctiid.347180
https://vuldb.com/?id.347180
https://vuldb.com/?submit.754640
https://www.tenda.com.cn/

Check your stack JSON