Securing the unpatchable in an age of AI-driven vulnerabilities

AI is accelerating vulnerability discovery, leaving unpatchable operational technology OT systems at risk. Hoping for the best is not a viable anti-exploitation strategy. Deploying next-generation firewalls directly upstream allows for virtual patching through deep packet inspection. These system...

CVE-2026-73468 Security Advisory 0175

A specially crafted packet can cause the premature expiry of multicast forwarding state on affected interfaces, potentially resulting in temporary multicast traffic loss during the affected period...

CVE-2026-73468

CVE-2026-73468 affects Arista EOS platforms configured with PIM Sparse Mode (both IPv4 and IPv6, in default or non-default VRFs). A specially crafted packet can cause premature expiry of multicast forwarding state , resulting in temporary loss of multicast traffic forwarding. The underlying weakn...

CVE-2026-73468 Security Advisory 0175

A specially crafted packet can cause the premature expiry of multicast forwarding state on affected interfaces, potentially resulting in temporary multicast traffic loss during the affected period...

EUVD-2026-80592

A specially crafted packet can cause the premature expiry of multicast forwarding state on affected interfaces, potentially resulting in temporary multicast traffic loss during the affected period...

EUVD-2026-80588

An unauthenticated P4Runtime Programming Protocol-Independent Packet Processors Runtime client can achieve arbitrary code execution under certain conditions on affected platforms running Arista EOS configured with P4Runtime. P4Runtime is disabled by default in Arista EOS. By crafting a malicious...

CVE-2026-73453 Security Advisory 0174

An unauthenticated P4Runtime Programming Protocol-Independent Packet Processors Runtime client can achieve arbitrary code execution under certain conditions on affected platforms running Arista EOS configured with P4Runtime. P4Runtime is disabled by default in Arista EOS. By crafting a malicious...

CVE-2026-73455 Security Advisory 0173

On affected platforms running Arista EOS with Open Shortest Path First version 3 OSPFv3 configured, a specially crafted packet can cause the OSPFv3 agent to restart unexpectedly...

EUVD-2026-80587

On affected platforms running Arista EOS with Open Shortest Path First version 3 OSPFv3 configured, a specially crafted packet can cause the OSPFv3 agent to restart unexpectedly...

CVE-2026-73455

CVE-2026-73455 affects Arista EOS where a specially crafted network packet can cause the OSPFv3 agent to restart unexpectedly, resulting in high availability impact (CVSS 3.1: 7.5). The root cause is classified as CWE-130 (Improper Handling of Length Parameter Inconsistency). Exploitation require...

CVE-2026-73455 Security Advisory 0173

On affected platforms running Arista EOS with Open Shortest Path First version 3 OSPFv3 configured, a specially crafted packet can cause the OSPFv3 agent to restart unexpectedly...

CVE-2026-73436 Security Advisory 0171

On affected platforms running Arista EOS with OSPFv2 and OSPFv2 segment routing configured, a specially crafted OSPFv2 packet from an adjacent OSPF neighbor may cause OSPF to restart unexpectedly...

CVE-2026-73435 Security Advisory 0171

On affected platforms running Arista EOS with Open Shortest Path First version 2 OSPFv2 configured, a specially crafted OSPFv2 packet from an unauthenticated attacker on the same broadcast segment, with OSPFv2 authentication configured can cause adjacency flapping and packet loss. The disruption...

CVE-2026-73436

CVE-2026-73436 affects Arista EOS when OSPFv2 segment routing is configured. A specially crafted OSPFv2 packet from an adjacent neighbor can trigger an unexpected OSPF process restart , causing a high availability impact (CVSS 3.1: 6.5 Medium; CVSS 4.0: 6.0 Medium). The root cause is linked to CW...

CVE-2026-73436 Security Advisory 0171

On affected platforms running Arista EOS with OSPFv2 and OSPFv2 segment routing configured, a specially crafted OSPFv2 packet from an adjacent OSPF neighbor may cause OSPF to restart unexpectedly...

CVE-2026-73435 Security Advisory 0171

On affected platforms running Arista EOS with Open Shortest Path First version 2 OSPFv2 configured, a specially crafted OSPFv2 packet from an unauthenticated attacker on the same broadcast segment, with OSPFv2 authentication configured can cause adjacency flapping and packet loss. The disruption...

EUVD-2026-80329

On affected platforms running Arista EOS with OSPFv2 and OSPFv2 segment routing configured, a specially crafted OSPFv2 packet from an adjacent OSPF neighbor may cause OSPF to restart unexpectedly...

EUVD-2026-80007

On affected platforms running Arista EOS with Dynamic Host Configuration Protocol DHCP relay configured, an unauthenticated attacker with network access could send a crafted DHCP reply packet from an IP address that is not configured as a helper address, and the relay agent would forward it to...

CVE-2026-73453: Improper Control of Generation of Code

An unauthenticated P4Runtime Programming Protocol-Independent Packet Processors Runtime client can achieve arbitrary code execution under certain conditions on affected platforms running Arista EOS configured with P4Runtime. P4Runtime is disabled by default in Arista EOS. By crafting a malicious...

PT-2026-93408

Name of the Vulnerable Software and Affected Versions Arista EOS affected versions not specified Description An issue exists in the Open Shortest Path First version 2 OSPFv2 implementation. An unauthenticated attacker on the same broadcast segment can send a specially crafted OSPFv2 packet to a...