CVE-2026-121286
Security Advisory 0213
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
On affected platforms running Arista EOS in multi-agent routing model with BGP Segment Routing Traffic Engineering (SR-TE) address family configured, a BGP peer can send crafted BGP packets to cause the BGP process to restart, disrupting all BGP sessions on the device.
| CWE | CWE-476 |
| Vendor | arista networks |
| Product | eos |
| Published | Nov 10, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Arista Networks / EOS
4.36.0F ≤ 4.36.2F 4.35.0F ≤ 4.35.6M 4.34.0F ≤ 4.34.8M 4.33.0F ≤ 4.33.10M 4.32.0F < 4.33.0F 4.22.1F < 4.32.0F