CVE-2025-55582: D-Link DCS-825L firmware v1.08.01 contains a vulnerability in the watchdog script `mydlink-watch-dog.sh`, whic

Routine

MEDIUM 6.6MITIGATE

CVE-2025-55582 is a medium-severity flaw (CVSS 6.6) affecting dcs-825l firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

D-Link DCS-825L firmware v1.08.01 contains a vulnerability in the watchdog script `mydlink-watch-dog.sh`, which blindly respawns binaries such as `dcp` and `signalc` without verifying integrity, authenticity, or permissions. An attacker with local filesystem access (via physical access, firmware modification, or debug interfaces) can replace these binaries with malicious payloads. The script executes these binaries as root in an infinite loop, le

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	6.6 (Medium)
Attack vector	Physical
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 84%)
CISA exploited list	No
Weakness	CWE-269, CWE-494
Published	2025-08-27
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: dlink

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-08-27 20:15 UTCPublished CVE record published
2026-06-17 09:41 UTCUpdated Record last modified

dlink dcs-825l firmware MITIGATE

Affected: 1.08.01

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.08.01

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-55582?

dcs-825l firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-55582 being exploited?

CVE-2025-55582 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-55582 affect?

CVE-2025-55582 affects dcs-825l firmware. Severity is medium (CVSS 6.6). D-Link DCS-825L firmware v1.08.01 contains a vulnerability in the watchdog script `mydlink-watch-dog.sh`, which blindly respawns binaries such as `dcp` and `signalc` without verifying integrity, authenticity, or permissions. An attacker wit

How urgent is CVE-2025-55582?

Priority 32/100. Public exploit reference

Software pages

D-Link vulnerabilities

Related CVEs

CVE-2025-55581 HIGH 7.3 UPGRADE D-Link DCS-825L firmware version 1.08.01 and possibly prior versions contain an insecure implementation in the

References

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