D-Link DCS-825L firmware v1.08.01 contains a vulnerability in the watchdog script `mydlink-watch-dog.sh`, which blindly respawns binaries such as `dcp` and `signalc` without verifying integrity, authenticity, or permissions. An attacker with local filesystem access (via physical access, firmware modification, or debug interfaces) can replace these binaries with malicious payloads. The script executes these binaries as root in an infinite loop, leading to persistent privilege escalation and arbitrary code execution. This issue is mitigated in v1.09.02, but the product is officially End-of-Life and unsupported.
History

Fri, 29 Aug 2025 14:15:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

cvssV3_1

{'score': 6.6, 'vector': 'CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}


Thu, 28 Aug 2025 19:15:00 +0000

Type Values Removed Values Added
References

Thu, 28 Aug 2025 07:45:00 +0000

Type Values Removed Values Added
First Time appeared Dlink
Dlink dcs-825l
Vendors & Products Dlink
Dlink dcs-825l

Wed, 27 Aug 2025 21:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-269
CWE-494
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 27 Aug 2025 20:15:00 +0000

Type Values Removed Values Added
Description D-Link DCS-825L firmware v1.08.01 contains a vulnerability in the watchdog script `mydlink-watch-dog.sh`, which blindly respawns binaries such as `dcp` and `signalc` without verifying integrity, authenticity, or permissions. An attacker with local filesystem access (via physical access, firmware modification, or debug interfaces) can replace these binaries with malicious payloads. The script executes these binaries as root in an infinite loop, leading to persistent privilege escalation and arbitrary code execution. This issue is mitigated in v1.09.02, but the product is officially End-of-Life and unsupported.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2025-08-27T00:00:00.000Z

Updated: 2025-08-29T13:50:44.360Z

Reserved: 2025-08-13T00:00:00.000Z

Link: CVE-2025-55582

cve-icon Vulnrichment

Updated: 2025-08-27T20:33:10.453Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-08-27T20:15:33.113

Modified: 2025-08-29T16:24:09.860

Link: CVE-2025-55582

cve-icon Redhat

No data.