CVE-2025-8873: On affected platforms running Arista EOS with IPsec configured, a specially crafted packet can cause the dataplane to stop processing all IPsec traffic. The…

PriorityP344high7.5CVSS 3.1

AVNACLPRNUINSUCNINAH

EPSS

0.39%

30.4th percentile

On affected platforms running Arista EOS with IPsec configured, a specially crafted packet can cause the dataplane to stop processing all IPsec traffic. The control plane may detect this condition, and attempt to reset the IPsec processing pipeline. After reset traffic may not resume being processed. There is no impact to non-IPsec traffic or to IPsec traffic not originating or terminating on the system. This issue was reported by an Arista customer.

Affected

5 ranges

Vendor	Product	Version range	Fixed in
arista_networks	eos	4.29.0M – 4.29.10.1M	—
arista_networks	eos	4.30.0M – 4.30.10M	—
arista_networks	eos	4.31.0M – 4.31.7.1M	—
arista_networks	eos	4.32.0M – 4.32.6.1M	—
arista_networks	eos	4.33.0M – 4.33.4M	—

CVSS provenance

nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

nvdv4.08.7HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:N/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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