CVE-2025-55581
7.3
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
Exploitability: 1.8 / Impact: 5.5
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)
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.
Affected (1)
Products: Dlink: Dcs 825l Firmware
Configuration A
| Vulnerable Software | Affected Versions |
|---|---|
| Up to 1.08.01 |
| Running on/with | Platform Versions |
|---|---|
Dlink Dcs 825l | All versions |
Related CWEs
CWE-269
Improper Privilege Management
The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.
CWE-306
Missing Authentication for Critical Function
The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.
CWE-494
Download of Code Without Integrity Check
The product downloads source code or an executable from a remote location and executes the code without sufficiently verifying the origin and integrity of the code.
References (3)
Source: cve@mitre.org
Product
Timeline
No history available yet.