CVE-2026-121370
Security Advisory 0224
CVSS Score
8.6
EPSS Score
0.0%
EPSS Percentile
0th
On affected platforms running Arista EOS with Precision Time Protocol (PTP) configured, an unauthenticated attacker with network access to a PTP-enabled port can create a denial of service (DoS) condition by sending traffic to the system.
| CWE | CWE-770 |
| Vendor | arista networks |
| Product | eos |
| Published | Nov 10, 2026 |
| Last Updated | Nov 10, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Arista Networks / EOS
4.34.0F ≤ 4.34.1F 4.33.0F ≤ 4.33.8M 4.32.0F < 4.33.0F 4.31.0F < 4.32.0F 4.30.0F < 4.31.0F 4.29.2F < 4.30.0F