CVE-2026-120983
Security Advisory 0215
CVSS Score
7.6
EPSS Score
0.0%
EPSS Percentile
0th
On affected EOS platforms where 802.1x is configured in multi-host authenticated mode and the device is configured with Policy Based Routing (PBR), traffic from unauthenticated hosts may be forwarded to the destination configured in the PBR policies. This could potentially allow unauthenticated hosts access to networks. Additionally Layer 2 and Layer 3 control packets from unauthenticated hosts may get copied to the CPU.
| CWE | CWE-284 |
| Vendor | arista networks |
| Product | eos |
| Published | Nov 10, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L 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 ≤ 4.33.9M 4.34.0F ≤ 4.34.7M 4.35.0F ≤ 4.35.5M 4.36.0F ≤ 4.36.1F