Vulnerability Monitor

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CVE-2025-55582

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.

Published

2025-08-27T20:15:33.113

Last Modified

2025-09-09T15:20:32.867

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 6.6 (MEDIUM)

Weaknesses

Type: Secondary
CWE-269
CWE-494

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	dlink	dcs-825l_firmware	1.08.01	Yes
Hardware	dlink	dcs-825l	-	No

References

https://cybermaya.in/posts/Post-43/ Exploit, Third Party Advisory ([email protected])
https://supportannouncement.us.dlink.com/security/publication.aspx?name=SAP10431 Product ([email protected])
https://www.dlink.com/en/security-bulletin/ Not Applicable ([email protected])