CVE-2025-67445

7.5 highEPSS 0.4%

High (7.5) in totolink x5000r firmware. EPSS 0.4% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

7.5 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 31% of CVEs (scores of 2026-10-31)
CWE: CWE-400
Published: 2026-02-24
Modified: 2026-07-05
Record from: the NVD, synced 2026-10-19

Affected

totolink:x5000r_firmware

References

https://github.com/DaRkSpOoOk/CVE-2025-67445

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