CVE-2026-3678HIGH 8.8EPSS p42.3%

CVE-2026-3678CVE-2026-3678

Description

A vulnerability was determined in Tenda FH451 1.0.0.9. Affected is the function sub_3C434 of the file /goform/AdvSetWan. This manipulation of the argument wanmode/PPPOEPassword causes stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized.

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
EPSS0.56% probability of exploitation · percentile 42.3% · 2026-06-19T12:03:05Z
Published2026-03-07
Last modified2026-03-09

Underlying weaknesses· 2

CWE-119CWE-121

References

  1. https://github.com/Litengzheng/vul_db/blob/main/FH451/vul_62/README.md
  2. https://vuldb.com/?ctiid.349580
  3. https://vuldb.com/?id.349580
  4. https://vuldb.com/?submit.765330
  5. https://www.tenda.com.cn/

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.