CVE-2021-31796

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.8% 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-327

Description

An inadequate encryption vulnerability discovered in CyberArk Credential Provider before 12.1 may lead to Information Disclosure. An attacker may realistically have enough information that the number of possible keys (for a credential file) is only one, and the number is usually not higher than 2^36.

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/164023/CyberArk-Credential-File-Insufficient-Effective-Key-Space.html
http://seclists.org/fulldisclosure/2021/Sep/1
https://korelogic.com/Resources/Advisories/KL-001-2021-008.txt
https://www.cyberark.com/resources/blog
http://packetstormsecurity.com/files/164023/CyberArk-Credential-File-Insufficient-Effective-Key-Space.html
http://seclists.org/fulldisclosure/2021/Sep/1
https://korelogic.com/Resources/Advisories/KL-001-2021-008.txt
https://www.cyberark.com/resources/blog

Get alerted when CVE-2021-31796 or the next vulnerability affects your stack