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Vulnerability Intelligence Report

CVE-2025-55581

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 Active Exploit Signals
CVSS Base Score
7.3
HIGH
Exploitability:1.9
Impact Score:5.5
EPSS Probability:0.17%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
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Weaponization
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SSVC Action
—

Weaknesses (CWE)

CWE-494 ↗CWE-494 Download of Code Without Integrity Check
CWE-306 ↗CWE-306 Missing Authentication for Critical Function
CWE-269 ↗CWE-269 Improper Privilege Management

Affected Products & Versions

Vendor Product Affected Versions
dlink dcs-825l_firmware all
dlink dcs-825l all

References & Technical Advisories

No reference links found.

Threat Intelligence Signals

EPSS Score
0.165%

Identity & Timeline

StatusPUBLISHED
Assigning AuthorityMITRE Corporation · N/A · USA
Reserved2025-08-13T00:00:00
Published2025-08-22T00:00:00
Last Updated2025-08-22T18:36:28

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