CVE-2025-7088: Belkin F9K1122 · Stack-based Buffer Overflow
Affects Belkin F9K1122Source CVE Database V5
Not known to be exploited · 13% EPSS · CVSS 8.7 High.
Data as of 25 Oct 2026, 19:02 UTC
- EPSS
- 13.8% chance of exploitation in 30 days – higher than 96% 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 6 Jul 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 2026-10-25.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Belkin F9K1122 | Affected
| Fixed in– |
AI-suggested
Immediate mitigation steps include: 1) Identifying and inventorying all Belkin F9K1122 devices running firmware version 1.00.33 within the network. 2) Isolating affected devices from critical network segments to limit potential lateral movement. 3) Disabling remote management interfaces if enabled, especially web-based management accessible from WAN. 4) Employing network-level protections such as firewall rules to restrict access to router management ports (e.g., TCP 80/443). 5) Monitoring network traffic for unusual patterns indicative of exploitation attempts. 6) Considering replacement or upgrade of affected devices to models with vendor-supported, patched firmware. 7) If possible, applying any unofficial or community-provided patches or workarounds while awaiting an official fix. 8) Educating users about the risks and encouraging prompt reporting of unusual device behavior. These steps go beyond generic advice by focusing on network segmentation, access restriction, and proactive monitoring tailored to this specific device and vulnerability.
Description
A vulnerability, which was classified as critical, was found in Belkin F9K1122 1.00.33. This affects the function formPPPoESetup of the file /goform/formPPPoESetup of the component webs. The manipulation of the argument pppUserName leads to stack-based buffer overflow. It is possible to initiate the attack 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.