What’s Vulnerable › Vulnerabilities

CVE-2021-31798

• Severity: medium (CVSS 4.4 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: 2021-09-02 · updated 2026-06-17
• Weakness: CWE-331

Description

The effective key space used to encrypt the cache in CyberArk Credential Provider prior to 12.1 has low entropy, and under certain conditions a local malicious user can obtain the plaintext of cache files.

Affected products

• CyberArk Credential Provider: before 12.1 — fixed in 12.1

How to fix

Upgrade to a fixed version: CyberArk Credential Provider 12.1. Check the vendor advisory for mitigations.

References

• http://packetstormsecurity.com/files/164035/CyberArk-Credential-Provider-Local-Cache-Decryption.html
• http://seclists.org/fulldisclosure/2021/Sep/3
• https://korelogic.com/Resources/Advisories/KL-001-2021-010.txt
• https://www.cyberark.com/resources/blog
• http://packetstormsecurity.com/files/164035/CyberArk-Credential-Provider-Local-Cache-Decryption.html
• http://seclists.org/fulldisclosure/2021/Sep/3
• https://korelogic.com/Resources/Advisories/KL-001-2021-010.txt
• https://www.cyberark.com/resources/blog

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