CVE-2026-121291
Security Advisory 0222
CVSS Score
8.2
EPSS Score
0.0%
EPSS Percentile
0th
A crafted Error Report can leave EOS stuck believing that a cache reset is in progress, preventing ROA publication, withdrawal reconciliation, and BGP origin-validation updates.
| CWE | CWE-696 |
| Vendor | arista networks |
| Product | eos |
| Published | Nov 10, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Arista Networks / EOS
4.37.0F 4.36.0F ≤ 4.36.2F 4.35.0F ≤ 4.35.6M