EO
Product
EOS
by Arista Networks · last CVE Sep 16, 2026
On CISA KEVExploited in the wild
55
CVEs
1
On KEV
10.0
Max CVSS
0
New 30D
Severity mix
Critical 6High 11Medium 32Low 6
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Add EOS to your stack to get only the CVEs that touch what you run.

CVECVSSEPSSPublishedSummary · affected versions
CVE-2025-3456
3.8
0%
Aug 25
On affected platforms running Arista EOS, the global common encryption key configuration may be logged in clear text, in local or remote accounting logs. Knowledge of both the encryption key and protocol specific encrypted secrets from the device running-c
Affected: 4.34.0F; 4.33.0 through 4.33.3F; 4.32.0 through 4.32.5M; 4.31.0 through 4.31.7M; 4.30.0 through 4.30.10M; 4.29.0 through 4.29.10M
CVE-2026-73442
3.0
0%
Sep 16
On affected platforms running Arista EOS with VRRP enabled, the peer device VRRP authentication credentials are logged in cleartext on the switch, allowing an authenticated user with sufficient privileges to view agent trace logs (or a system receiving for
Affected: 4.36.0 through 4.36.1F; 4.35.0 through 4.35.5M; 4.34.0 through 4.34.7M; 4.33.0 through 4.33.9M
CVE-2026-75945
2.6
0%
Sep 14
A race condition may cause a supplicant to remain in an authorized state after a clear dot1x host all command is issued.
Affected: 4.36.0 through 4.36.1F
CVE-2026-75944
2.6
0%
Sep 14
A race condition during supplicant re-authentication may leave a stale ACL entry that persists in the system. If the AclAgent subsequently restarts, this stale entry may be applied to new supplicants, resulting in incorrect access control enforcement. User
Affected: 4.36.0 through 4.36.1F
CVE-2026-75943
2.6
0%
Sep 14
A brief (milliseconds to seconds) traffic leak may occur when an authenticated supplicant is removed, either via the clear dot1x host all CLI command or due to a supplicant timeout. During this window, the supplicant's traffic may pass without ACL enforcem
Affected: 4.36.0 through 4.36.1F; 4.35.0 through 4.35.5M; 4.34.0 through 4.34.7.1M; 0.0.0 through 4.33.9M
CVE-2026-77191
2.6
0%
Sep 14
All of the CVEs covered in this advisory apply to affected platforms running Arista EOS with 802.1X authentication and authorization enabled and Access Control Lists (ACLs) configured for per-supplicant policy enforcement. An authenticated supplicant on an
Affected: 4.35.0 through 4.35.0.3F; 4.34.0 through 4.34.5M; 0.0.0 through 4.33.7.1M
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