CVE-2025-11297: Belkin F9K1015 · Buffer Overflow
Affects Belkin F9K1015Source CVE Database V5
Not known to be exploited · CVSS 8.7 High.
Data as of 26 Oct 2026, 06:26 UTC
- EPSS
- 1.1% chance of exploitation in 30 days – higher than 65% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:PExploitation evidence
Disclosed: evidence found.
CVE published 5 Oct 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
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
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 2026-10-26.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Belkin F9K1015 | Affected
| Fixed in– |
AI-suggested
Given the absence of official patches, organizations should implement the following specific mitigations: 1) Immediately disable remote management interfaces on the Belkin F9K1015 routers to prevent external access to the vulnerable endpoint. 2) Restrict network access to the router's management interface by implementing firewall rules that limit access to trusted internal IP addresses only. 3) Segment the network to isolate vulnerable devices from critical systems and sensitive data. 4) Monitor network traffic for unusual requests targeting /goform/formSetLanguage or anomalous patterns indicative of exploitation attempts. 5) Where feasible, replace the affected router model with a device from a vendor that provides timely security updates. 6) Employ intrusion detection/prevention systems (IDS/IPS) with signatures or heuristics capable of detecting exploitation attempts against this vulnerability. 7) Educate network administrators about the vulnerability and ensure incident response plans include steps for handling potential exploitation. These targeted actions go beyond generic advice and address the specific nature and exploitation vector of this vulnerability.
Description
A vulnerability was found in Belkin F9K1015 1.00.10. This issue affects some unknown processing of the file /goform/formSetLanguage. Performing a manipulation of the argument webpage results in buffer overflow. The attack is possible to be carried out remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.