VDB-321667 · CVE-2025-55582 · EUVD-2025-25955

D-Link DCS-825L 1.08.01 mydlink-watch-dog.sh infinite loop

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3.8	$0-$5k	0.00

Summaryinfo

A vulnerability has been found in D-Link DCS-825L 1.08.01 and classified as problematic. Impacted is an unknown function of the file mydlink-watch-dog.sh. This manipulation causes infinite loop. This vulnerability only affects products that are no longer supported by the maintainer. This vulnerability is tracked as CVE-2025-55582. It is feasible to perform the attack on the physical device. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in D-Link DCS-825L 1.08.01. It has been declared as problematic. Affected by this vulnerability is an unknown part of the file mydlink-watch-dog.sh. The manipulation with an unknown input leads to a infinite loop vulnerability. The CWE definition for the vulnerability is CWE-835. The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop. As an impact it is known to affect availability. The summary by CVE is:

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, leading to persistent privilege escalation and arbitrary code execution. This issue is mitigated in v1.09.02, but the product is officially End-of-Life and unsupported.

It is possible to read the advisory at dlink.com. This vulnerability is known as CVE-2025-55582 since 08/13/2025. The exploitation appears to be difficult. Attacking locally is a requirement. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 1.09.02 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-25955). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

D-Link

Name

DCS-825L

Version

1.08.01

License

commercial

Support

end of life

Website

Vendor: https://www.dlink.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.0
VulDB Meta Temp Score: 3.8

VulDB Base Score: 4.0
VulDB Temp Score: 3.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Infinite loop
CWE: CWE-835 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: Yes
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: DCS-825L 1.09.02

Timelineinfo

08/13/2025 CVE reserved
08/28/2025 +15 days Advisory disclosed
08/28/2025 +0 days VulDB entry created
08/29/2025 +1 days VulDB entry last update

Sourcesinfo

Vendor: dlink.com

Advisory: dlink.com
Status: Confirmed

CVE: CVE-2025-55582 (🔒)
GCVE (CVE): GCVE-0-2025-55582
GCVE (VulDB): GCVE-100-321667
EUVD: 🔒

Entryinfo

Created: 08/28/2025 07:41
Updated: 08/29/2025 08:25
Changes: 08/28/2025 07:41 (56), 08/28/2025 22:08 (1), 08/29/2025 08:25 (1)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.