CVE-2026-1638HIGH 8.8EPSS p76.3%

CVE-2026-1638CVE-2026-1638

Description

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.

Scoring

CVSS 3.18.8 (HIGH)
VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS1.84% probability of exploitation · percentile 76.3% · 2026-06-19T12:03:05Z
Published2026-01-30
Last modified2026-04-29

Underlying weaknesses· 2

CWE-74CWE-77

References

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

2

TypeTargetConfidenceTier
WeaknessImproper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')cwe-740%live
WeaknessImproper Neutralization of Special Elements used in a Command ('Command Injection')cwe-770%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.