Vulnerability Details CVE-2025-60686
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 2.1%
CVSS Severity
CVSS v3 Score 5.1
References
Products affected by CVE-2025-60686
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cpe:2.3:h:totolink:a720r:-
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cpe:2.3:h:totolink:lr1200gb:-
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cpe:2.3:h:totolink:nr1800x:-
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cpe:2.3:o:totolink:a720r_firmware:4.1.5cu.614_b20230630
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cpe:2.3:o:totolink:lr1200gb_firmware:9.1.0u.6619_b20230130
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cpe:2.3:o:totolink:nr1800x_firmware:9.1.0u.6681_b20230703