Belkin F9K1009/F9K1010 Web Interface hard-coded credentials

published 2025-08-08 15 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-23988

cvss: 9.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 3.7%; EPSS 3.7% chance of exploitation in 30 days, percentile 89%
public exploits: 1; Exploit-DB

A vulnerability was found in Belkin F9K1009 and F9K1010 2.00.04/2.00.09 and classified as critical. Affected by this issue is some unknown functionality of the component Web Interface. The manipulation leads to hard-coded credentials. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Timeline

2025-08-08 Published
2025-08-11 First public exploit (EDB-52407)

CISA SSVC

Exploitation: Proof of concept is public
Automatable: yes
Technical impact: total
Assessed: 15 mo ago (2025-08-08)

Exploit prediction

3.74% chance of exploitation in the next 30 days, higher than 89% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

EDB-52407 Belkin F9K1009 F9K1010 2.00.04/2.00.09 - Hard Coded Credentials remote, 2025-08-11
github.com https://github.com/Nicholas-wei/bug-discovery/blob/main/belkin/F9K1010_WW_2.00.04/belkin_F9K1010_WW_2.00.04_hardcoded_credential.pdf referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	4.0	9.3	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
CNA	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
CNA	3.0	9.8	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
CNA	2.0	10.0	AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR
CNA	4.0	8.9	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/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	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA	2.0	10.0	AV:N/AC:L/Au:N/C:C/I:C/A:C

Affected products

Belkin F9K1009
Belkin F9K1010

Classification

Weakness

CWE-798 Use of Hard-coded Credentials
CWE-259 Use of Hard-coded Password

References

github.com /Nicholas-wei/bug-discovery/blob/main/belkin/F9K1010_WW_2.00.04/belkin_F9K1010_WW_2.00.04_hardcoded_credential
exploit
vuldb.com /?id.319226
vdb-entry
vuldb.com /?ctiid.319226
signature, permissions-required
vuldb.com /?submit.621747
third-party-advisory
vuldb.com /?submit.621748
third-party-advisory
vuldb.com /?submit.621760
third-party-advisory
github.com /Nicholas-wei/bug-discovery/blob/main/belkin/F9K1009_WW_2.00.09/belkin%20F9K1009_WW_2.00.09_hardcoded_credenti
related

Sources

CVE List CVE-2025-8730
NVD CVE-2025-8730

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