CVE-2021-31796

Name: CVE-2021-31796
Creator: NVD / NIST
Published: 2021-09-02T01:15:06.4+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.74%

Last modified Jun 17, 2026

CVE-2021-31796 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 1.74% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

1.74%

74.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-327

Affected Software

Vendor	Product	Versions
Cyberark	Credential Provider	< 12.1

References

http://packetstormsecurity.com/files/164023/CyberArk-Credential-File-Insufficient-Effective-Key-Space.htmlThird Party Advisory, VDB Entry
http://seclists.org/fulldisclosure/2021/Sep/1Mailing List, Third Party Advisory
https://korelogic.com/Resources/Advisories/KL-001-2021-008.txtMailing List, Third Party Advisory
https://www.cyberark.com/resources/blogProduct
http://packetstormsecurity.com/files/164023/CyberArk-Credential-File-Insufficient-Effective-Key-Space.htmlThird Party Advisory, VDB Entry
http://seclists.org/fulldisclosure/2021/Sep/1Mailing List, Third Party Advisory
https://korelogic.com/Resources/Advisories/KL-001-2021-008.txtMailing List, Third Party Advisory
https://www.cyberark.com/resources/blogProduct

Timeline

Published: Sep 2, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-31796?

How severe is CVE-2021-31796?

CVE-2021-31796 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.74% probability of exploitation in the next 30 days.

How do I fix CVE-2021-31796?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-31796?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST