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Advisory: Arista Networks EOS — Security Advisory 0160 Clear all filters
TI-2026-51575 CVE-2026-73460 · GHSA-7q68-g5wg-74r4

Incorrect authorization in Arista EOS

Priority LOW 30

On affected platforms running Arista EOS with IS-IS graceful restart enabled, an unauthenticated attacker who can inject a malformed IS-IS LSP PDU packet can cause the IS-IS graceful restart procedure to terminate premat…

CVSS 4.0HIGH 7.0 Adjacent network No auth No interaction EPSS 0.00197 Published 2026-09-15 No fix listed CWE-863
TI-2026-51574 CVE-2026-73459 · GHSA-vq63-cff6-37q2

On affected platforms running Arista EOS with IS-IS configured, an unauthenticated…

Priority LOW 30

On affected platforms running Arista EOS with IS-IS configured, an unauthenticated attacker who can inject a specially crafted IS-IS LSP PDU can cause the legitimate LSP to be unexpectedly purged from the IS-IS link-stat…

CVSS 4.0HIGH 7.0 Adjacent network No auth No interaction EPSS 0.00173 Published 2026-09-15 No fix listed CWE-354
TI-2026-51563 CVE-2026-73446 · GHSA-gq4c-29w8-926p

On affected platforms running Arista EOS with IS-IS configured on a broadcast interface…

Priority LOW 30

On affected platforms running Arista EOS with IS-IS configured on a broadcast interface, an unauthenticated attacker can send a crafted IS-IS Hello Protocol Data Unit (PDU) that causes the device to tear down an establis…

CVSS 4.0HIGH 7.0 Adjacent network No auth No interaction EPSS 0.00265 Published 2026-09-15 Fixed in 4.33.0F, 4.32.0F CWE-696