CVE-2025-6931
D-Link DCS-6517 DCS-7517 Insufficient Entropy in Root Password Generation Handler
Description
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 leads to insufficient entropy. The attack can be launched remotely. The complexity of an attack is rather high. The exploitation appears to be difficult. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.
INFO
Published Date :
June 30, 2025, 11:15 p.m.
Last Modified :
July 14, 2025, 5:19 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.2
Exploitability Score :
2.2
Affected Products
The following products are affected by CVE-2025-6931
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-6931.
| URL | Resource |
|---|---|
| http://cdn2.v50to.cc/dlink/DCS-6517B1_FW_v2.02.01/report_3.pdf | Exploit Third Party Advisory |
| http://cdn2.v50to.cc/dlink/DCS-7517_B1_FW_v2.02.01/report_1.pdf | Exploit Third Party Advisory |
| https://vuldb.com/?ctiid.314443 | Permissions Required VDB Entry |
| https://vuldb.com/?id.314443 | Third Party Advisory VDB Entry |
| https://vuldb.com/?submit.605592 | Third Party Advisory VDB Entry |
| https://vuldb.com/?submit.605593 | Third Party Advisory VDB Entry |
| https://vuldb.com/?submit.605596 | Third Party Advisory VDB Entry |
| https://www.dlink.com/ | Product |
| http://cdn2.v50to.cc/dlink/DCS-6517B1_FW_v2.02.01/report_3.pdf | Exploit Third Party Advisory |
| http://cdn2.v50to.cc/dlink/DCS-7517_B1_FW_v2.02.01/report_1.pdf | Exploit Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-6931 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-6931 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Jul. 14, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N Added CPE Configuration AND OR *cpe:2.3:o:dlink:dcs-6517_firmware:*:*:*:*:*:*:*:* versions up to (including) 2.02.0 OR cpe:2.3:h:dlink:dcs-6517:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:dlink:dcs-7517_firmware:*:*:*:*:*:*:*:* versions up to (including) 2.02.0 OR cpe:2.3:h:dlink:dcs-7517:-:*:*:*:*:*:*:* Added Reference Type CISA-ADP: http://cdn2.v50to.cc/dlink/DCS-6517B1_FW_v2.02.01/report_3.pdf Types: Exploit, Third Party Advisory Added Reference Type VulDB: http://cdn2.v50to.cc/dlink/DCS-6517B1_FW_v2.02.01/report_3.pdf Types: Exploit, Third Party Advisory Added Reference Type CISA-ADP: http://cdn2.v50to.cc/dlink/DCS-7517_B1_FW_v2.02.01/report_1.pdf Types: Exploit, Third Party Advisory Added Reference Type VulDB: http://cdn2.v50to.cc/dlink/DCS-7517_B1_FW_v2.02.01/report_1.pdf Types: Exploit, Third Party Advisory Added Reference Type VulDB: https://vuldb.com/?ctiid.314443 Types: Permissions Required, VDB Entry Added Reference Type VulDB: https://vuldb.com/?id.314443 Types: Third Party Advisory, VDB Entry Added Reference Type VulDB: https://vuldb.com/?submit.605592 Types: Third Party Advisory, VDB Entry Added Reference Type VulDB: https://vuldb.com/?submit.605593 Types: Third Party Advisory, VDB Entry Added Reference Type VulDB: https://vuldb.com/?submit.605596 Types: Third Party Advisory, VDB Entry Added Reference Type VulDB: https://www.dlink.com/ Types: Product -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 01, 2025
Action Type Old Value New Value Added Reference http://cdn2.v50to.cc/dlink/DCS-6517B1_FW_v2.02.01/report_3.pdf Added Reference http://cdn2.v50to.cc/dlink/DCS-7517_B1_FW_v2.02.01/report_1.pdf -
New CVE Received by [email protected]
Jun. 30, 2025
Action Type Old Value New Value Added Tag unsupported-when-assigned Added Description 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 leads to insufficient entropy. The attack can be launched remotely. The complexity of an attack is rather high. The exploitation appears to be difficult. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer. Added CVSS V4.0 AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N Added CVSS V2 (AV:N/AC:H/Au:N/C:P/I:N/A:N) Added CWE CWE-330 Added CWE CWE-331 Added Reference http://cdn2.v50to.cc/dlink/DCS-6517B1_FW_v2.02.01/report_3.pdf Added Reference http://cdn2.v50to.cc/dlink/DCS-7517_B1_FW_v2.02.01/report_1.pdf Added Reference https://vuldb.com/?ctiid.314443 Added Reference https://vuldb.com/?id.314443 Added Reference https://vuldb.com/?submit.605592 Added Reference https://vuldb.com/?submit.605593 Added Reference https://vuldb.com/?submit.605596 Added Reference https://www.dlink.com/
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-6931 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-6931
weaknesses.