A stack buffer overflow vulnerability exists in the D-Link DIR-816A2 router firmware DIR-816A2_FWv1.10CNB05_R1B011D88210.img in the upload.cgi module, which handles firmware version information. The vulnerability occurs because /proc/version is read into a 512-byte buffer and then concatenated using sprintf() into another 512-byte buffer containing a 29-byte constant. Input exceeding 481 bytes triggers a stack buffer overflow, allowing an attacker who can control /proc/version content to potentially execute arbitrary code on the device.
Advisories

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Fixes

Solution

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Workaround

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History

Tue, 18 Nov 2025 03:00:00 +0900

Type Values Removed Values Added
First Time appeared Dlink
Dlink dir-816
Dlink dir-816 Firmware
CPEs cpe:2.3:h:dlink:dir-816:a2:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dir-816_firmware:1.10cnb05_r1b011d88210:*:*:*:*:*:*:*
Vendors & Products Dlink
Dlink dir-816
Dlink dir-816 Firmware

Sat, 15 Nov 2025 03:15:00 +0900

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L'}

cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}


Sat, 15 Nov 2025 02:15:00 +0900

Type Values Removed Values Added
Weaknesses CWE-121
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 14 Nov 2025 18:30:00 +0900

Type Values Removed Values Added
First Time appeared D-link
D-link dir-816a2
Vendors & Products D-link
D-link dir-816a2

Fri, 14 Nov 2025 04:30:00 +0900

Type Values Removed Values Added
Description A stack buffer overflow vulnerability exists in the D-Link DIR-816A2 router firmware DIR-816A2_FWv1.10CNB05_R1B011D88210.img in the upload.cgi module, which handles firmware version information. The vulnerability occurs because /proc/version is read into a 512-byte buffer and then concatenated using sprintf() into another 512-byte buffer containing a 29-byte constant. Input exceeding 481 bytes triggers a stack buffer overflow, allowing an attacker who can control /proc/version content to potentially execute arbitrary code on the device.
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2025-11-14T18:06:27.207Z

Reserved: 2025-09-26T00:00:00.000Z

Link: CVE-2025-60679

cve-icon Vulnrichment

Updated: 2025-11-14T16:40:38.933Z

cve-icon NVD

Status : Analyzed

Published: 2025-11-13T20:15:51.420

Modified: 2025-11-17T17:57:15.760

Link: CVE-2025-60679

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-11-14T18:27:50Z

Weaknesses