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...

The vulnerability of the packet filtering function of the Cisco IOS XE operating system, which allows a hacker to bypass L2 and L4-level filters

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...

The vulnerability of the traffic filtering component of the Cisco SD-WAN programmable network allows a hacker to bypass the filters at the L2 and L4 levels.

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...