How severe is CVE-2021-22941?

CVE-2021-22941 has a CVSS 3.1 base score of 9.8 (CRITICAL). EPSS estimates a 53.6% probability of exploitation in the next 30 days. It is listed in the CISA Known Exploited Vulnerabilities catalog.

CVE-2021-22941: Citrix ShareFile Improper Access Control

CISA Known Exploited Vulnerabilities

Citrix ShareFile Improper Access Control Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV

2022-03-25

Remediation due

2022-04-15

Ransomware

Known use

Required action
Apply updates per vendor instructions.

CISA notes
https://nvd.nist.gov/vuln/detail/CVE-2021-22941

Description

Improper Access Control in Citrix ShareFile storage zones controller before 5.11.20 may allow an unauthenticated attacker to remotely compromise the storage zones controller.

Severity

CVSS 3.1 · CISA9.8 CRITICAL

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

SSVC · CISA-ADP

Exploitationactive

Automatableyes

Technical impacttotal

Affected Products

Vendor	Product	Affected versions
-	Citrix ShareFile storage zones controller	5.11.20

References

1 Links

Other references

https://support.citrix.com/article/CTX328123

Record Details

Published

2021-09-23

Last updated

2025-10-21

Assigner (CNA)

hackerone

Credited to

Related Tool Categories

Tool categories that test for or protect against this vulnerability class.

CWE-284 · Improper Access Control

IAM Tools Application Security Tools

CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.