MEDIUMCVSS v3.1 5.3Vulnerability
CVE-2026-119423
OPNsense core before 26.7.8 contains a log injection vulnerability that allows unauthenticated attackers to plant victim IP addresses in the lockout_handler by submitting crafted WebGUI login usernames. Attackers can submit usernames like 'Invalid user <victim-ip>' repeatedly to add the victim to the sshlockout table, blocking SSH and WebGUI access and killing its pf states.
Properties
- Severity
- MEDIUM
- Nvd fetched at
- 2026-10-30T16:01:42.334480+00:00
- Cvss severity
- MEDIUM
- Cvss score
- 5.3
- Retrieved at
- 2026-10-30T16:05:55+00:00
- Score
- 5.3
- Cvss version
- 3.1
- Last source
- NVD
- Cve id
- CVE-2026-119423
- Cvss vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- First seen by Signal
- 2026-10-30T16:05:55+00:00
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- Published at
- 2026-10-30T12:16:39.210
- Last modified
- 2026-10-30T12:16:39.210
Related Entities (1)
HAS_WEAKNESS (1)
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