CVE-2018-9843: Cyberark Password Vault

Critical severity, CVSS 9.8. EPSS: 16.7% chance of exploitation in the next 30 days.

The REST API in CyberArk Password Vault Web Access before 9.9.5 and 10.x before 10.1 allows remote attackers to execute arbitrary code via a serialized .NET object in an Authorization HTTP header.

Affected products

• Cyberark Password Vault: before 9.9.5 (fixed in 9.9.5); from 10.0, before 10.1 (fixed in 10.1)

Published 2018-04-12. Last modified 2026-06-17.