CVE-2024-9135: On affected platforms running Arista EOS with BGP Link State configured, BGP peer flap can cause the BGP agent to leak memory. This may result in BGP routing processing being terminated and route flapping.

Severity: medium (CVSS 5.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-03-04 · updated 2026-06-17
Weakness: CWE-401

Description

On affected platforms running Arista EOS with BGP Link State configured, BGP peer flap can cause the BGP agent to leak memory. This may result in BGP routing processing being terminated and route flapping.

Affected products

Arista Networks EOS: from 4.31.0 through 4.31.5; from 4.30.0 through 4.30.8.1; from 4.29.0 through 4.29.9.1; from 4.27.0 through 4.27.1; 4.33.0, 4.28.0

References

https://www.arista.com/en/support/advisories-notices/security-advisory/21092-security-advisory-0110

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