CVEvulnerability
CVE-2025-60686
5.1 MEDIUM
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 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.
Affected configurations
• totolink a720r firmware 4.1.5cu.614 b20230630
• totolink lr1200gb firmware 9.1.0u.6619 b20230130
• totolink nr1800x firmware 9.1.0u.6681 b20230703
Related
Weakness · CWE (1)
- CWE-121 Stack-based Buffer Overflow weakness
References
- https://github.com/yifan20020708/SGTaint-0-day/blob/main/ToToLink/ToToLink-A720R/CVE-2025-60686.md Exploit, Third Party Advisory
- https://www.totolink.net/ Product