CVE-2021-28505
HIGHArista EOS 4.26-4.26.4m - Improper Access Control in VXLAN Match Rule
Title source: llmDescription
On affected Arista EOS platforms, if a VXLAN match rule exists in an IPv4 access-list that is applied to the ingress of an L2 or an L3 port/SVI, the VXLAN rule and subsequent ACL rules in that access list will ignore the specified IP protocol.
References (1)
Core 1
Core References
Exploit, Vendor Advisory x_refsource_misc
https://www.arista.com/en/support/advisories-notices/security-advisories/15267-security-advisory-0073
Scores
CVSS v3
7.5
EPSS
0.0084
EPSS Percentile
53.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Details
CWE
CWE-284
CWE-863
Status
published
Products (1)
arista/eos
4.26 - 4.26.4m
Published
Apr 14, 2022
Tracked Since
Feb 18, 2026