VULNERABILITY INTELLIGENCE

CVE-2025-60685

CVSS score5.1 MEDIUM
EPSS probability0.24%
CISA KEVNot currently listed
Published2025-11-13
Last modified2026-07-05
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

Description

A stack buffer overflow exists in the ToToLink A720R Router firmware V4.1.5cu.614_B20230630 within the sysconf binary (sub_401EE0 function). The binary reads the /proc/stat file using fgets() into a local buffer and subsequently parses the line using sscanf() into a single-byte variable with the %s format specifier. Maliciously crafted /proc/stat content can overwrite adjacent stack memory, potentially allowing an attacker with filesystem write privileges to execute arbitrary code on the device.

Weakness classification

  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-121

Primary references