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CVE PROGRAM SOURCE RECORD6.9 Medium

CVE-2026-19641

On affected platforms running Arista EOS with password authentication configured, a specially crafted password can create orphan authentication sessions. Repeated exploitation of this issue can exhaust available authentication resources, resulting in legit

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Status
Published
Published
Updated
Assigning organization
Arista

Description

On affected platforms running Arista EOS with password authentication configured, a specially crafted password can create orphan authentication sessions. Repeated exploitation of this issue can exhaust available authentication resources, resulting in legitimate users being unable to log in to the device. This issue was discovered internally by Arista, and the company is not aware of any malicious exploitation of this vulnerability in customer networks.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Arista Networks EOS

Default version status: unaffected

  • 4.36.0 to ≤ 4.36.0Faffected
  • 4.35.0 to ≤ 4.35.5Maffected
  • 4.34.0 to ≤ 4.34.7.1Maffected
  • 0.0.0 to ≤ 4.33.8Maffected

References