CVE-2026-121370
CRITICAL
INFO
Priority: 0.05
BB Relevance:
79/100
Published: 2026-11-10
Modified: 2026-11-12
First seen: 2026-11-10
Status: active
Attack Surface
Network
Low Complexity
No Auth
No Interaction
CVSS Vector Breakdown
AV:
Network
AC:
Low
PR:
None
UI:
None
S:
X
AT:
None
VC:
None
VI:
None
VA:
High
Description
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.
Weakness Classification (1)
Affected Software (12)
| Vendor | Product | Version |
|---|---|---|
| Arista Networks | EOS | 4.34.0F |
| Arista Networks | EOS | 4.33.0F |
| Arista Networks | EOS | 4.32.0F < 4.33.0F |
| Arista Networks | EOS | 4.31.0F < 4.32.0F |
| Arista Networks | EOS | 4.30.0F < 4.31.0F |
| Arista Networks | EOS | 4.29.2F < 4.30.0F |
| Arista Networks | EOS | 4.34.0F |
| Arista Networks | EOS | 4.33.0F |
| Arista Networks | EOS | 4.32.0F < 4.33.0F |
| Arista Networks | EOS | 4.31.0F < 4.32.0F |
| Arista Networks | EOS | 4.30.0F < 4.31.0F |
| Arista Networks | EOS | 4.29.2F < 4.30.0F |