CVE-2025-60686 — Stack-based Buffer Overflow in A720r Firmware

CWE-121 — Stack-based Buffer Overflow3 documents3 sources
Severity
5.1MEDIUMNVD
EPSS
0.0%
top 94.40%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Totolink A720r FirmwareTotolink Lr1200gb FirmwareTotolink Nr1800x Firmware
Timeline
PublishedNov 13

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 with…

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:LExploitability: 2.5 | Impact: 2.5

Affected Packages3 packages

▶NVDtotolink/a720r_firmware4.1.5cu.614_b20230630
▶NVDtotolink/nr1800x_firmware9.1.0u.6681_b20230703
▶NVDtotolink/lr1200gb_firmware9.1.0u.6619_b20230130

🔴Vulnerability Details

2
GHSA
GHSA-5mqq-26vj-265q: A local stack-based buffer overflow vulnerability exists in the infostat↗2025-11-13
▶
CVEList
CVE-2025-60686: A local stack-based buffer overflow vulnerability exists in the infostat↗2025-11-13
▶
CVE-2025-60686 — Stack-based Buffer Overflow | cvebase