CVE-2026-1637HIGH 8.8EPSS p46.1%

CVE-2026-1637CVE-2026-1637

Description

A vulnerability was identified in Tenda AC21 16.03.08.16. The affected element is the function fromAdvSetMacMtuWan of the file /goform/AdvSetMacMtuWan. The manipulation leads to stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit is publicly available and might be used.

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
EPSS0.65% probability of exploitation · percentile 46.1% · 2026-06-19T12:03:05Z
Published2026-01-29
Last modified2026-02-10

Underlying weaknesses· 2

CWE-119CWE-121

References

  1. https://github.com/LX-LX88/cve/issues/25
  2. https://vuldb.com/?ctiid.343416
  3. https://vuldb.com/?id.343416
  4. https://vuldb.com/?submit.740865
  5. https://www.tenda.com.cn/
  6. https://github.com/LX-LX88/cve/issues/25

2

TypeTargetConfidenceTier
WeaknessImproper Restriction of Operations within the Bounds of a Memory Buffercwe-1190%live
WeaknessStack-based Buffer Overflowcwe-1210%live

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