CVE-2026-1638

low-risk
Published 2026-01-30

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.

Do I need to act?

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0.14% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.3/10 Medium
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Tenda

References (5)

Broken Link https://github.com/LX-LX88/cve/issues/26
Permissions Required https://vuldb.com/?ctiid.343417
Third Party Advisory https://vuldb.com/?id.343417
Third Party Advisory https://vuldb.com/?submit.740871
Product https://www.tenda.com.cn/
29
/ 100
low-risk
Severity 23/34 · High
Exploitability 1/34 · Minimal
Exposure 5/34 · Minimal