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CVE-2025-55581

Published: Aug 22, 2025Updated: Sep 12, 2025 Sources: CVE List NVD BDUCWE-269
7.3HIGH
NVD MITRE
EPSS Score
0.2%
Top 92.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:LAC:LPR:LUI:NS:UC:HI:HA:L
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:LAvailability
Low
Open in CVSS calculator →

Weaknesses

CWE-269CWE-306CWE-494

Affected Products

D-Link Corp.
commercial·TWaka dlink, d-link corporation, d-link international
dcs-825l firmware
Networking Infrastructure
DCS-825L
Networking Infrastructure
and 1 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2025-55581?We can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

4 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://www.dlink.com/en/security-bulletin/
dlink.com
https://legacy.us.dlink.com/pages/product.aspx?id=f9c0458bfe7b4ff3bf7fad1cf6fcc9a1
legacy.us.dlink.com
https://cybermaya.in/posts/Post-42/
cybermaya.in

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