CVE-2025-60686
Severity CVSS v4.0:
Pending analysis
Type:
CWE-121
Stack-based Buffer Overflow
Publication date:
13/11/2025
Last modified:
19/11/2025
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.
Impact
Base Score 3.x
5.10
Severity 3.x
MEDIUM
Vulnerable products and versions
| CPE | From | Up to |
|---|---|---|
| cpe:2.3:o:totolink:a720r_firmware:4.1.5cu.614_b20230630:*:*:*:*:*:*:* | ||
| cpe:2.3:h:totolink:a720r:-:*:*:*:*:*:*:* | ||
| cpe:2.3:o:totolink:lr1200gb_firmware:9.1.0u.6619_b20230130:*:*:*:*:*:*:* | ||
| cpe:2.3:h:totolink:lr1200gb:-:*:*:*:*:*:*:* | ||
| cpe:2.3:o:totolink:nr1800x_firmware:9.1.0u.6681_b20230703:*:*:*:*:*:*:* | ||
| cpe:2.3:h:totolink:nr1800x:-:*:*:*:*:*:*:* |
To consult the complete list of CPE names with products and versions, see this page