MEDIUMCVSS v3.1 5.4Vulnerability
CVE-2026-119425
OPNsense core 26.1.6 through 26.7.7 contains an authentication bypass vulnerability in the captive portal roaming feature that lets unauthenticated attackers hijack authorized client sessions by spoofing unauthenticated MAC-to-IP observations. Attackers on the same Layer-2 segment can send forged gratuitous ARP replies binding their IP to a victim's MAC, gaining portal access with traffic attributed to the victim.
Properties
- Severity
- MEDIUM
- Nvd fetched at
- 2026-10-30T16:01:42.334480+00:00
- Cvss severity
- MEDIUM
- Cvss score
- 5.4
- Retrieved at
- 2026-10-30T16:05:55+00:00
- Score
- 5.4
- Cvss version
- 3.1
- Last source
- NVD
- Cve id
- CVE-2026-119425
- Cvss vector
- CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- First seen by Signal
- 2026-10-30T16:05:55+00:00
- Vector
- CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- Published at
- 2026-10-30T12:16:39.527
- Last modified
- 2026-10-30T12:16:39.527
Related Entities (1)
HAS_WEAKNESS (1)
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