Ietf P802 1q
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By the Year
In 2026 there have been 0 vulnerabilities in Ietf P802 1q. P802 1q did not have any published security vulnerabilities last year.
| Year | Vulnerabilities | Average Score |
|---|---|---|
| 2026 | 0 | 0.00 |
| 2025 | 0 | 0.00 |
| 2024 | 0 | 0.00 |
| 2023 | 0 | 0.00 |
| 2022 | 4 | 4.70 |
It may take a day or so for new P802 1q vulnerabilities to show up in the stats or in the list of recent security vulnerabilities. Additionally vulnerabilities may be tagged under a different product or component name.
Recent Ietf P802 1q Security Vulnerabilities
IPv6 RA Guard bypass via LLC/SNAP header length attack
CVE-2021-27862
4.7 - Medium
- September 27, 2022
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).
length manipulation
Linux Kernel RA Guard Bypass via LLC/SNAP Header Exploit
CVE-2021-27861
4.7 - Medium
- September 27, 2022
Layer 2 network filtering capabilities such as IPv6 RA guard can be bypassed using LLC/SNAP headers with invalid length (and optionally VLAN0 headers)
length manipulation
Layer 2 RA Guard Bypass using VLAN0/LLC/SNAP & Ethernet-Wifi
CVE-2021-27854
4.7 - Medium
- September 27, 2022
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.
Authentication Bypass by Spoofing
CVE-2021-27853: VLAN 0+LLC/SNAP bypass of IPv6 RA guard (Cisco IOS XE)
CVE-2021-27853
4.7 - Medium
- September 27, 2022
Layer 2 network filtering capabilities such as IPv6 RA guard or ARP inspection can be bypassed using combinations of VLAN 0 headers and LLC/SNAP headers.
Authentication Bypass by Spoofing
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