Description
On affected platforms running Arista EOS with 802.1X configured, certain conditions may occur where a dynamic ACL is received from the AAA server resulting in only the first line of the ACL being installed after an Accelerated Software Upgrade (ASU) restart. Note: supplicants with pending captive-portal authentication during ASU would be impacted with this bug.
Scores
CVSS v3
5.3
EPSS
0.0024
EPSS Percentile
47.3%
Attack Vector
ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-1284
Status
published
Products (3)
Arista Networks/EOS
4.30.0 - 4.30.8M
Arista Networks/EOS
4.31.0 - 4.31.5M
Arista Networks/EOS
4.32.0 - 4.32.4M
Published
Mar 04, 2025
Tracked Since
Feb 18, 2026