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CVE-2021-22941

CriticalPublished

Citrix ShareFile Improper Access Control Vulnerability

Published: Sep 23, 2021
Updated: Oct 21, 2025
Assigning CNA: hackerone
Evidence observed: Mar 25, 2022

Primary CVSS

9.8/ 10Critical

nvd · CVSS 3.1

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

EPSS probability estimate

53.6%

High · next 30 days

Percentile: 99.0%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

CISA Known Exploited

This CVE appears in the CISA Known Exploited Vulnerabilities catalog.

Summary

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.

Sources

CVE-2021-22941Exploit
Python exploit for CVE-2021-22941 targeting Citrix ShareFile RCE with shell and ping options for remote command execution and network probing.

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