CVE-2021-31798 json
The effective key space used to encrypt the cache in CyberArk Credential Provider prior to 12.1 has low entropy, and under certain conditio…
published 2021-09-02 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-18679
- cvss
- 4.4
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 38%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- cyberark credential_provider 12.1
Exploit prediction
0.44% chance of exploitation in the next 30 days, higher than 38% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 4.4 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 1.9 | AV:L/AC:M/Au:N/C:P/I:N/A:N |
Classification
- Weakness
-
- CWE-331 Insufficient Entropy
References
-
cyberark.com
/resources/blog
product
-
seclists.org
/fulldisclosure/2021/Sep/3
mailing-list, third-party-advisory
-
korelogic.com
/Resources/Advisories/KL-001-2021-010.txt
third-party-advisory
-
packetstormsecurity.com
/files/164035/CyberArk-Credential-Provider-Local-Cache-Decryption.html
third-party-advisory, vdb-entry
Sources
- CVE List CVE-2021-31798
- NVD CVE-2021-31798
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.