CVE-2025-60686
MEDIUM
MEDIUM
Priority: 0.01
BB Relevance:
45/100
Published: 2025-11-13
Modified: 2026-11-05
First seen: 2026-11-05
Status: active
Attack Surface
Low Complexity
No Auth
No Interaction
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
None
UI:
None
S:
Unchanged
C:
Low
I:
None
A:
Low
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.
Weakness Classification (1)
Affected Software (3)
| Vendor | Product | Version |
|---|---|---|
| totolink | a720r_firmware | 4.1.5cu.614_b20230630 |
| totolink | lr1200gb_firmware | 9.1.0u.6619_b20230130 |
| totolink | nr1800x_firmware | 9.1.0u.6681_b20230703 |
References & Advisories (2)
Product
Exploit
Third Party Advisory