CVE-2025-8873 — Arista EOS Dataplane Denial of Service via Malformed IPsec Packet
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 de…
Published: 2026-06-04 · CVSS: 8.7 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7