CVE-2025-60686

MEDIUM EPSS 10.5%
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 local stack-based buffer overflow vulnerability exists in the infostat.cgi and cstecgi.cgi binaries of ToToLink routers (A720R V4.1.5cu.614_B20230630, LR1200GB V9.1.0u.6619_B20230130, and NR1800X V9.1.0u.6681_B20230703). Both programs parse the contents of /proc/net/arp using sscanf() with "%s" format specifiers into fixed-size stack buffers without length validation. Specifically, one function writes user-controlled data into a single-byte buffer, and the other into adjacent small arrays without bounds checking. An attacker who controls the contents of /proc/net/arp can trigger memory corruption, leading to denial of service or potential arbitrary code execution.

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
10.5% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 1

CWE-121

Affected Products 6

VendorProductVersionRange
totolinka720r_firmware4.1.5cu.614_b20230630any
totolinka720r*any
totolinklr1200gb_firmware9.1.0u.6619_b20230130any
totolinklr1200gb*any
totolinknr1800x_firmware9.1.0u.6681_b20230703any
totolinknr1800x*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-2025-60686.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.