CVE-2025-55581
D-Link
- Published
- 22 August 2025
- Last modified
- 17 June 2026
- CVSS
- 7.3 v3.1
- Severity
- high
- EPSS
- 0.2% (7th pct)
- CISA KEV
- Not listed
- NVD status
- Analyzed
- Weaknesses
- CWE-269, CWE-306, CWE-494
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
Description
D-Link DCS-825L firmware version 1.08.01 and possibly prior versions contain an insecure implementation in the mydlink-watch-dog.sh script. The script monitors and respawns the `dcp` and `signalc` binaries without validating their integrity, origin, or permissions. An attacker with filesystem access (e.g., via UART or firmware modification) may replace these binaries to achieve persistent arbitrary code execution with root privileges. The issue stems from improper handling of executable trust and absence of integrity checks in the watchdog logic.
Exploitation
Not listed in the CISA Known Exploited Vulnerabilities catalogue as of 2026.09.04. That is an absence of confirmed public exploitation, not evidence that exploitation has not occurred. EPSS models a 0.2% probability of exploitation activity in the next 30 days.
Affected products
| Product | Vendor | Type | Versions named |
|---|---|---|---|
| DCS-825L | D-Link | IP camera | 1.08, 1.08.01, <= 1.08.01, >= 1.00 |
References
- https://cybermaya.in/posts/Post-42/ exploit
- https://legacy.us.dlink.com/pages/product.aspx?id=f9c0458bfe7b4ff3bf7fad1cf6fcc9a1
- https://www.dlink.com/en/security-bulletin/
Record assembled from NVD, CISA KEV 2026.09.04 and FIRST EPSS 2026-09-04. Affected products are those NVD's CPE configuration names that fall inside this site's scope; a CVE may affect products outside it.