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CVE-2025-6931— D-Link DCS-6517/DCS-7517 Root Password Generation httpd generate_pass_from_mac entropy

Quick assessment

Affected
D-Link DCS-6517
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

D-Link DCS-6517和D-Link DCS-7517都是中国友讯（D-Link）公司的一款网络摄像机。 D-Link DCS-6517和D-Link DCS-7517 2.02.0及之前版本存在安全特征问题漏洞，该漏洞源于密码生成函数的熵不足。

CVSS 3.7 · Low EPSS 2.23% · P82

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-6931

Vulnerability Information
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Vulnerability Title
D-Link DCS-6517/DCS-7517 Root Password Generation httpd generate_pass_from_mac entropy
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息熵不充分
Source: CVE Program / CVE List V5
Vulnerability Title
D-Link DCS-6517和D-Link DCS-7517 安全特征问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
D-Link DCS-6517和D-Link DCS-7517都是中国友讯（D-Link）公司的一款网络摄像机。 D-Link DCS-6517和D-Link DCS-7517 2.02.0及之前版本存在安全特征问题漏洞，该漏洞源于密码生成函数的熵不足。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
D-Link DCS-6517 2.02 -
D-Link DCS-7517 2.02 -

II. Public POCs for CVE-2025-6931

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III. Intelligence Information for CVE-2025-6931

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Vendor Pages for CVE-2025-6931 (1)

Same Patch Batch · D-Link · 2025-06-30 · 8 CVEs total

CVE-2025-6882 8.8 HIGH D-Link DIR-513 formSetWanPPTP buffer overflow
CVE-2025-6881 8.8 HIGH D-Link DI-8100 jhttpd pppoe_base.asp buffer overflow
CVE-2025-6899 6.3 MEDIUM D-Link DI-7300G+/DI-8200G msp_info.htm os command injection
CVE-2025-6898 6.3 MEDIUM D-Link DI-7300G+ in proxy_client.asp os command injection
CVE-2025-6896 6.3 MEDIUM D-Link DI-7300G+ wget_test.asp os command injection
CVE-2025-6897 5.5 MEDIUM D-Link DI-7300G+ httpd_debug.asp os command injection
CVE-2025-6932 3.7 LOW D-Link DCS-7517 Qlync Password Generation httpd g_F_n_GenPassForQlync hard-coded password

IV. Related Vulnerabilities

Same vendor: D-Link
Same weakness: CWE-331

V. Comments for CVE-2025-6931

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