CVE-2025-60685

MEDIUM EPSS 10.6%
Published Nov 13, 20257mo ago · Modified Jun 17, 20262w ago
5.1 CVSS 3.1
Medium
Find Similar
Published Nov 13, 2025 7mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
5.1
Exploitability
2.5
Impact
2.5
Vector string
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity None
Availability Low

Threat Intelligence

EPSS Exploit Probability
10.6% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 1

CWE-121

Affected Products 2

VendorProductVersionRange
totolinka720r_firmware4.1.5cu.614_b20230630any
totolinka720r*any

References 3

  • totolink.com http://totolink.com
    Broken Link
  • github.com https://github.com/yifan20020708/SGTaint-0-day/blob/main/ToToLink/ToToLink-A720R/CVE-2025-60685.md
    ExploitThird Party Advisory
  • totolink.net https://www.totolink.net/
    Product

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.