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CVE-2025-8872

A specially crafted packet can cause the OSFPv3 process to have high CPU utilization which may result in the OSFPv3 process being restarted

Published: Dec 16, 2025Updated: Dec 18, 2025 Sources: CVE List NVDCWE-400
NVD MITRE
6.5CVSSMEDIUM
EPSS Score
0.3%
Top 83.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-400

Affected Products

EOSArista Networks
On-prem
Networking Infrastructure / router-switch
arista networkscommercialUSNetworking Infrastructureaka arista networks

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available
Workaround Available

MITRE ATT&CK

1 technique
Impact
View detailed technique mapping

References

https://www.arista.com/en/support/advisories-notices/security-advisory/23115-security-advisory-0128
arista.com

Timeline

Published
Dec 16, 2025
Last Updated
Dec 18, 2025

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