D-Link DCS-7517 Qlync Password Generation httpd g_F_n_GenPassForQlync hard-coded password

published 2025-06-30 16 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-19591

cvss: 3.7; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.3%; EPSS 1.3% chance of exploitation in 30 days, percentile 70%
public exploits: 0; none known

A vulnerability, which was classified as problematic, was found in D-Link DCS-7517 up to 2.02.0. This affects the function g_F_n_GenPassForQlync of the file /bin/httpd of the component Qlync Password Generation Handler. The manipulation leads to use of hard-coded password. It is possible to initiate the attack remotely. The complexity of an attack is rather high. The exploitability is told 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.

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 16 mo ago (2025-07-01)

Exploit prediction

1.28% chance of exploitation in the next 30 days, higher than 70% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

cdn2.v50to.cc http://cdn2.v50to.cc/dlink/DCS-7517_B1_FW_v2.02.01/report_2.pdf referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	4.0	6.3	CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
CNA	3.1	3.7	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R
CNA	3.0	3.7	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R
CNA	2.0	2.6	AV:N/AC:H/Au:N/C:P/I:N/A:N/E:POC/RL:ND/RC:UR
CNA	4.0	2.9	CVSS:4.0/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
CNA	3.1	3.7	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
CNA	2.0	2.6	AV:N/AC:H/Au:N/C:P/I:N/A:N

Affected products

D-Link DCS-7517

Classification

Weakness

CWE-259 Use of Hard-coded Password
CWE-255 Credentials Management Errors

References

cdn2.v50to.cc /dlink/DCS-7517_B1_FW_v2.02.01/report_2.pdf
exploit, third-party-advisory
vuldb.com /?id.314445
vdb-entry, technical-description, third-party-advisory
vuldb.com /?ctiid.314445
signature, permissions-required, vdb-entry
vuldb.com /?submit.605595
third-party-advisory, vdb-entry
dlink.com /
product

Sources

CVE List CVE-2025-6932
NVD CVE-2025-6932

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary