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.
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History
Thu, 13 Nov 2025 18:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-121 | |
| Metrics |
cvssV3_1
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Thu, 13 Nov 2025 16:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| References |
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Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2025-11-13T17:37:44.079Z
Reserved: 2025-09-26T00:00:00.000Z
Link: CVE-2025-60686
Updated: 2025-11-13T17:37:38.550Z
Status : Received
Published: 2025-11-13T16:15:52.590
Modified: 2025-11-13T18:15:51.740
Link: CVE-2025-60686
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OpenCVE Enrichment
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