CVE-2026-5608CWE-119CWE-121

Belkin F9K1122 formWlanSetup stack-based overflow

High · published April 6, 2026

CVSS v4.0
8.7
EPSS
1%
Percentile
64.2
In the wild
Unconfirmed
What it is

A vulnerability was detected in Belkin F9K1122 1.00.33. Affected is the function formWlanSetup of the file /goform/formWlanSetup. The manipulation of the argument webpage results in stack-based buffer overflow. The attack may be performed from remote. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

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
0.01058 · 64.2th percentile
Weaknesses
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer; CWE-121 · Stack-based Buffer Overflow
Published
2026-04-06T00:30Z
EPSS history
Timeline
  • 06 APR 00:30Z
    Belkin F9K1122 formWlanSetup stack-based overflow
    cvelistv5