Layer 2 network filtering capabilities such as IPv6 RA guard can be bypassed using combinations of VLAN 0 headers, LLC/SNAP headers, and converting frames from Ethernet to Wifi and its reverse.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 21 May 2025 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: certcc

Published:

Updated: 2025-05-21T15:06:44.230Z

Reserved: 2021-03-01T00:00:00.000Z

Link: CVE-2021-27854

cve-icon Vulnrichment

Updated: 2024-08-03T21:33:15.949Z

cve-icon NVD

Status : Modified

Published: 2022-09-27T19:15:09.240

Modified: 2025-05-21T15:15:54.267

Link: CVE-2021-27854

cve-icon Redhat

Severity : Moderate

Publid Date: 2021-09-27T10:30:00Z

Links: CVE-2021-27854 - Bugzilla

cve-icon OpenCVE Enrichment

No data.