Layer 2 network filtering capabilities such as IPv6 RA guard can be bypassed using LLC/SNAP headers with invalid length and Ethernet to Wifi frame conversion (and optionally VLAN0 headers).
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 21 May 2025 15:15:00 +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: 2025-05-21T15:04:40.862Z

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

Link: CVE-2021-27862

cve-icon Vulnrichment

Updated: 2024-08-03T21:33:15.798Z

cve-icon NVD

Status : Modified

Published: 2022-09-27T19:15:09.403

Modified: 2025-05-21T15:15:54.743

Link: CVE-2021-27862

cve-icon Redhat

Severity : Moderate

Publid Date: 2022-09-29T12:30:00Z

Links: CVE-2021-27862 - Bugzilla

cve-icon OpenCVE Enrichment

No data.