CVE-2026-23811

A vulnerability in the client isolation mechanism may allow an attacker to bypass Layer 2 L2 communication restrictions between clients and redirect traffic at Layer 3 L3. In addition to bypassing policy enforcement, successful exploitation - when combined with a port-stealing attack - may enable...

SUSE CVE-2021-27854

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...

CVE-2021-27854

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...

PT-2022-9878 · Ieee +1 · 802.2 +3

Name of the Vulnerable Software and Affected Versions: No specific software or versions are mentioned in the provided descriptions. Description: The issue allows Layer 2 network filtering capabilities, such as IPv6 RA guard, to be bypassed. This can be achieved by utilizing LLC/SNAP headers with...

Cisco IOS XE Packet Filtering Bypass

The vulnerability of the packet filtering function in the Cisco IOS XE operating system exists due to insufficient validation of input data. Exploiting this vulnerability can allow a malicious actor to bypass L2 and L4 filters remotely...

Cisco SD-WAN Programmable Network Bypass Filters L2 L4

The vulnerability of the Cisco SD-WAN’s programmatically defined traffic filtering component exists due to insufficient validation of input data. Exploiting this vulnerability can allow a malicious actor to bypass L2 and L4 filters using a specially crafted TCP packet...