How severe is CVE-2025-55581?

CVE-2025-55581 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability low.

Is CVE-2025-55581 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-55581?

CVE-2025-55581 affects Dlink Dcs-825l Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-55581?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-55581 have an EU (EUVD) identifier?

Yes. CVE-2025-55581 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-25614.

When was CVE-2025-55581 published?

CVE-2025-55581 was published on 2025-08-22 and last updated on 2026-06-17.

CVE-2025-55581

CVE-2025-55581 is a high-severity vulnerability in Dlink Dcs-825l Firmware with a CVSS 3.x base score of 7.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-269.

Key facts

Severity: High (CVSS 3.x base score 7.3)
EPSS exploit prediction: 0% (6th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-25614
Weakness: CWE-269
Affected product: Dlink Dcs-825l Firmware
Published: 2025-08-22
Last modified: 2026-06-17

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.

Frequently asked questions

What is 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.
How severe is CVE-2025-55581?: CVE-2025-55581 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability low.
Is CVE-2025-55581 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-55581?: CVE-2025-55581 affects Dlink Dcs-825l Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-55581?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-55581 have an EU (EUVD) identifier?: Yes. CVE-2025-55581 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-25614.
When was CVE-2025-55581 published?: CVE-2025-55581 was published on 2025-08-22 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:dlink:dcs-825l_firmware:*:*:*:*:*:*:*:*

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