HIGH SEVERITY

CVE-2025-7087

F9k1122 Firmware vulnerability

CVSS
8.8
EPSS
8.4%
EPSS pct
94th
Exploited
No known
A vulnerability classified as critical was found in Belkin F9K1122 1.00.33. Affected by this vulnerability is the function formL2TPSetup of the file /goform/formL2TPSetup of the component webs. The manipulation of the argument L2TPUserName leads to stack-based buffer overflow. The attack can 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.
Affected vendor
Belkin
Affected product
F9k1122 Firmware
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
  • CWE-119 — Improper Restriction of Operations within Memory Bounds
  • CWE-121 — Stack-based Buffer Overflow
Published
2025-07-06

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring low privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 8.4% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 94% of all scored CVEs.

Check your external exposure to CVE-2025-7087

  • Confirm whether Belkin F9k1122 Firmware is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2025-7087.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2025-7087

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