CVE-2026-4976CWE-119CWE-120

Totolink LR350 cstecgi.cgi setWiFiGuestCfg buffer overflow

High · published March 27, 2026

CVSS v4.0
8.7
EPSS
1%
Percentile
62.7
In the wild
Unconfirmed
What it is

A vulnerability was found in Totolink LR350 9.3.5u.6369_B20220309. This vulnerability affects the function setWiFiGuestCfg of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument ssid results in buffer overflow. The attack can be launched remotely. The exploit has been made public and could be used.

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
0.01009 · 62.7th percentile
Weaknesses
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer; CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Published
2026-03-27T20:29Z
EPSS history
Timeline
  • 27 MAR 20:29Z
    Totolink LR350 cstecgi.cgi setWiFiGuestCfg buffer overflow
    cvelistv5