CVE-2025-8730: Belkin F9K1009 · Hard-coded Credentials
Affects Belkin F9K1009Source CVE Database V5
Not known to be exploited · public exploit available (Exploit-DB) · CVSS 9.3 Critical.
Data as of 26 Oct 2026, 09:08 UTC
- EPSS
- 3.5% chance of exploitation in 30 days – higher than 89% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
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:PExploitation evidence
t = 0 is the CVE’s publication on cve.org
Disclosed: evidence found.
CVE published 8 Aug 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: evidence found.
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
Timeline
CVE ID reserved
by VulDB
, 7 hours before disclosure
CVE published
on cve.org
, t = 0
In Threat Radar
record ingested
, 16 minutes after disclosure
First Exploit-DB entry (opens in a new tab)
Belkin F9K1009 F9K1010 2.00.04/2.00.09 - Hard Coded Credentials
, 3 days after disclosure
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Belkin F9K1009 | Affected
| Fixed in– |
AI-suggested
Given the absence of official patches from Belkin, European organizations should implement the following specific mitigations: 1) Immediately identify and inventory all Belkin F9K1009 and F9K1010 devices running affected firmware versions within their networks. 2) Where possible, replace vulnerable devices with alternative routers from vendors with active security support. 3) If replacement is not feasible, isolate these routers on segmented network zones with strict access controls to limit exposure. 4) Disable remote management features on these devices to prevent external access to the web interface. 5) Employ network intrusion detection and prevention systems (IDS/IPS) to monitor and block suspicious traffic targeting router management interfaces. 6) Regularly monitor network logs for unusual access patterns or unauthorized configuration changes. 7) Educate users and IT staff about the risks and signs of compromise related to these devices. 8) Engage with Belkin support channels to demand timely security updates and consider reporting to national cybersecurity authorities to escalate the issue. 9) Implement compensating controls such as VPNs for remote access and multi-factor authentication on network entry points to reduce risk exposure.
Description
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.
References
- vuldb.com (opens in a new tab)
- vuldb.com (opens in a new tab)
- vuldb.com (opens in a new tab)
- vuldb.com (opens in a new tab)
- vuldb.com (opens in a new tab)
- github.com/Nicholas-wei/bug-discovery/blob/main/belkin/F9K1009_WW_2.00.09/belkin%20F9K1009_WW_2.00.09_hardcoded_credential.pdf (opens in a new tab)
- github.com/Nicholas-wei/bug-discovery/blob/main/belkin/F9K1010_WW_2.00.04/belkin_F9K1010_WW_2.00.04_hardcoded_credential.pdf (opens in a new tab)