CVEvulnerability

CVE-2025-60685

5.1 MEDIUM Published 2025-11-13 Modified 2026-07-05 Official page ↗
Status
Modified
Published
2025-11-13
Last modified
2026-07-05
Assigner
[email protected]
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
5.1 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
Weaknesses
CWE-121

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.

Affected configurations

• totolink a720r firmware 4.1.5cu.614 b20230630

Related

Weakness · CWE (1)

  • CWE-121 Stack-based Buffer Overflow weakness

References