CVE-2021-22941Improper Access Control in Citrix ShareFile storage zones controller before 5.11.20 may allow an unauthenticated attacker to remotely compromise the storage zones controller.
Updated under an hour ago ()
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It affects citrix sharefile_storagezones_controller. Add what you run to find out whether that includes you.
CISA lists it as known exploited since Mar 25, 2022; federal agencies had to remediate by Apr 15, 2022, and it is known to be used in ransomware. Treat that date as your deadline.
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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.
- CVSS
- 9.8 CRITICAL (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-284
- Known exploited
- Added to CISA KEV Mar 25, 2022; federal remediation due Apr 15, 2022; known ransomware useApply updates per vendor instructions.
- EPSS (exploitation in the next 30 days)
- 53.59% (percentile 99)
- Assigned by
- hackerone
- NVD analysis
- Analyzed
- Record last updated
- Oct 21, 2025
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
citrix sharefile_storagezones_controller citrix:sharefile_storagezones_controller | before 5.11.20 | NVD |
References
- https://support.citrix.com/article/CTX328123x-refsource-misc, broken-link, vendor-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-22941us-government-resource
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.