CVE-2026-3678CWE-119CWE-121

Tenda FH451 AdvSetWan sub_3C434 stack-based overflow

High · published March 7, 2026

CVSS v4.0
8.7
EPSS
1%
Percentile
63.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
8.7 · HIGH
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
EPSS
0.01017 · 63.0th percentile
Weaknesses
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer; CWE-121 · Stack-based Buffer Overflow
Published
2026-03-07T22:32Z
EPSS history
Timeline
  • 07 MAR 22:32Z
    Tenda FH451 AdvSetWan sub_3C434 stack-based overflow
    cvelistv5