CVE-2025-55581

HighCVSS 7.3/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 7.3/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L

Weakness enumeration

CWE-269CWE-306CWE-494

Affected software

No affected versions have been published.

Timeline

Published
Aug 22, 2025
Last modified
Jun 17, 2026
NVD status
Analyzed

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