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CVE-2025-8872

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CVE-2025-8872

Published: Dec 16, 2025

Modified: Dec 16, 2025

PUBLISHED

CVSS v3.1

6.5

MEDIUM

Description

On affected platforms running Arista EOS with OSPFv3 configured, a specially crafted packet can cause the OSFPv3 process to have high CPU utilization which may result in the OSFPv3 process being restarted. This may cause disruption in the OSFPv3 routes on the switch. This issue was discovered internally by Arista and is not aware of any malicious uses of this issue in customer networks.

VendorProductVersions

Arista Networks

EOS

affected
4.34.0 - <= 4.34.1F
affected
4.33.0 - <= 4.33.4M
affected
4.32.0 - <= 4.32.7M
affected
4.31.0 - <= 4.31.8M
affected
0 - <= 4.31.0

Weaknesses (CWE)

CWE-400

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

References

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