# CVE-2021-22941: Citrix ShareFile Improper Access Control Vulnerability

> CVE-2021-22941: Citrix ShareFile Improper Access Control Vulnerability. CVSS 9.8 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2021-22941
Last updated: 2025-10-21T23:25:31Z

- Published: 2021-09-23 12:44 UTC · Updated: 2025-10-21 23:25 UTC · Assigner: hackerone
- CVSS: 9.8 (CVSS 3.1) · Severity: Critical · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS: 53.6%, 99th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2022-03-25, federal due date 2022-04-15, ransomware use: Known
- CWE: CWE-284

## 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.

## CISA required action

Apply updates per vendor instructions.

## Affected vendors and products

- n/a: Citrix ShareFile storage zones controller

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2021-22941)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2021-22941)
- [https://support.citrix.com/article/CTX328123](https://support.citrix.com/article/CTX328123)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2021-22941 · Markdown: https://rewindex.com/cve/CVE-2021-22941.md · JSON: https://rewindex.com/api/v1/cves/CVE-2021-22941 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:10:22.432Z