CVE-2025-8872

published 2025-12-16

CVE-2025-8872: 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…

Priority P3 36 medium 6.5 CVSS 3.1

AV N AC L PR L UI N S U C N I N A H

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.

Affected

5 ranges

Vendor	Product	Version range	Fixed in
arista_networks	eos	<= 4.31.0	—
arista_networks	eos	4.31.0 – 4.31.8M	—
arista_networks	eos	4.32.0 – 4.32.7M	—
arista_networks	eos	4.33.0 – 4.33.4M	—
arista_networks	eos	4.34.0 – 4.34.1F	—

CVSS provenance

nvd v3.1 6.5 MEDIUM CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

nvd v4.0 7.1 HIGH CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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CWE-400