CVE-2025-67445
HIGHTOTOLINK X5000R V9.1.0cu.2415_B20250515 - DoS
Title source: llmDescription
TOTOLINK X5000R V9.1.0cu.2415_B20250515 contains a denial-of-service vulnerability in /cgi-bin/cstecgi.cgi. The CGI reads the CONTENT_LENGTH environment variable and allocates memory using malloc (CONTENT_LENGTH + 1) without sufficient bounds checking. When lighttpd s request size limit is not enforced, a crafted large POST request can cause memory exhaustion or a segmentation fault, leading to a crash of the management CGI and loss of availability of the web interface.
Scores
CVSS v3
7.5
EPSS
0.0011
EPSS Percentile
29.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Classification
CWE
CWE-400
Status
published
Affected Products (1)
totolink/x5000r_firmware
Timeline
Published
Feb 24, 2026
Tracked Since
Feb 24, 2026