CVE-2025-55582

low-risk
Published 2025-08-27

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.

Do I need to act?

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0.02% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.6/10 Medium
PHYSICAL / LOW complexity

Affected Products (1)

Dcs-825L Firmware

Affected Vendors

Dlink

References (3)

Exploit https://cybermaya.in/posts/Post-43/
Product https://supportannouncement.us.dlink.com/security/publication.aspx?name=SAP10431
Not Applicable https://www.dlink.com/en/security-bulletin/
26
/ 100
low-risk
Severity 21/34 · High
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal