CVE-2026-1638

2.1 lowEPSS 2.2%

Low (2.1) in tenda ac21 firmware. EPSS 2.2% chance of exploitation in the next 30 days.

A security flaw has been discovered in Tenda AC21 1.1.1.1/1.dmzip/16.03.08.16. The impacted element is the function mDMZSetCfg of the file /goform/mDMZSetCfg. The manipulation of the argument dmzIp results in command injection. The attack can be executed remotely. The exploit has been released to the public and may be used for attacks.

Severity

CVSS 4.0

2.1 low

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/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: 2.2% chance of exploitation in the next 30 days; higher than 82% of CVEs (scores of 2026-10-31)
CWEs: CWE-77, CWE-74
Published: 2026-01-30
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

tenda:ac21_firmware

References

https://github.com/LX-LX88/cve/issues/26
https://vuldb.com/?ctiid.343417
https://vuldb.com/?id.343417
https://vuldb.com/?submit.740871
https://www.tenda.com.cn/

Check your stack JSON