CVE-2026-121293
Security Advisory 0210
CVSS Score
4.4
EPSS Score
0.0%
EPSS Percentile
0th
On affected EOS-based platforms, an attacker who controls a Border Gateway Protocol (BGP) peer can send a crafted BGP message over an established session with the Dynamic Path Selection (DPS) address family negotiated. This can cause the BGP process to terminate unexpectedly, resetting all BGP sessions and disrupting routing services until the process restarts.
| 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:H/PR:H/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
1.0.0 < 4.33.0F 4.33.0F ≤ 4.33.10M 4.34.0F ≤ 4.34.8M 4.35.0F ≤ 4.35.6M 4.36.0F ≤ 4.36.2F