A stack buffer overflow exists in the ToToLink A720R Router firmware V4.1.5cu.614_B20230630 within the sysconf binary (sub_401EE0 function). The binary reads the /proc/stat file using fgets() into a local buffer and subsequently parses the line using sscanf() into a single-byte variable with the %s format specifier. Maliciously crafted /proc/stat content can overwrite adjacent stack memory, potentially allowing an attacker with filesystem write privileges to execute arbitrary code on the device.
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References
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 15:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A stack buffer overflow exists in the ToToLink A720R Router firmware V4.1.5cu.614_B20230630 within the sysconf binary (sub_401EE0 function). The binary reads the /proc/stat file using fgets() into a local buffer and subsequently parses the line using sscanf() into a single-byte variable with the %s format specifier. Maliciously crafted /proc/stat content can overwrite adjacent stack memory, potentially allowing an attacker with filesystem write privileges to execute arbitrary code on the device. | |
| References |
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Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2025-11-13T17:27:56.985Z
Reserved: 2025-09-26T00:00:00.000Z
Link: CVE-2025-60685
Updated: 2025-11-13T17:27:40.653Z
Status : Received
Published: 2025-11-13T16:15:52.470
Modified: 2025-11-13T18:15:51.567
Link: CVE-2025-60685
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OpenCVE Enrichment
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