D-Link DCS-6517/DCS-7517 up to 2.02.0 Root Password Generation /bin/httpd generate_pass_from_mac entropy

CVSS Meta Temp Score
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CTI Interest Score
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3.5$0-$5k0.00

Summaryinfo

A vulnerability has been found in D-Link DCS-6517 and DCS-7517 up to 2.02.0 and classified as problematic. This affects the function generate_pass_from_mac of the file /bin/httpd of the component Root Password Generation Handler. This manipulation causes entropy. This vulnerability only affects products that are no longer supported by the maintainer. This vulnerability appears as CVE-2025-6931. The attack may be initiated remotely. In addition, an exploit is available.

Detailsinfo

A vulnerability classified as problematic was found in D-Link DCS-6517 and DCS-7517 up to 2.02.0. Affected by this vulnerability is the function generate_pass_from_mac of the file /bin/httpd of the component Root Password Generation Handler. The manipulation with an unknown input leads to a entropy vulnerability. The CWE definition for the vulnerability is CWE-331. The product uses an algorithm or scheme that produces insufficient entropy, leaving patterns or clusters of values that are more likely to occur than others. As an impact it is known to affect confidentiality.

It is possible to read the advisory at cdn2.v50to.cc. This vulnerability is known as CVE-2025-6931. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details and also a public exploit are known. The attack technique deployed by this issue is T1600.001 according to MITRE ATT&CK.

It is possible to download the exploit at cdn2.v50to.cc. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-19592). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 3.7
VulDB Meta Temp Score: 3.5

VulDB Base Score: 3.7
VulDB Temp Score: 3.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 3.7
CNA Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Entropy
CWE: CWE-331 / CWE-330 / CWE-310
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

06/30/2025 Advisory disclosed
06/30/2025 +0 days VulDB entry created
07/01/2025 +1 days VulDB entry last update

Sourcesinfo

Vendor: dlink.com

Advisory: cdn2.v50to.cc
Status: Not defined

CVE: CVE-2025-6931 (🔒)
GCVE (CVE): GCVE-0-2025-6931
GCVE (VulDB): GCVE-100-314443
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 06/30/2025 17:57
Updated: 07/01/2025 16:56
Changes: 06/30/2025 17:57 (57), 07/01/2025 02:57 (1), 07/01/2025 10:36 (30), 07/01/2025 16:56 (1)
Complete: 🔍
Submitter: CookedMelon
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #605592: dlink DCS-6517B1 below or equal v2.02.01 hardcode weak password (by CookedMelon)

Duplicate

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

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