Critical severity · published Sep 23, 2021
CVE-2021-22941
Citrix ShareFile Improper Access Control Vulnerability
RansomwareIn wildKEV
9.8
CVSS
53.6%
EPSS
Yes
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)53.6% · higher than 99% of CVEs
Exploited in the wildYes
CISA KEVListed Mar 25, 2022
Federal remediation dueApr 15, 2022
Ransomware campaign useKnown
Affected products
Which versions
CS
Citrix ShareFile storage zones controller ·
5.11.20 · source: vendor
SS
Sharefile Storagezones Controller · Citrix
before 5.11.20 · source: NVD
SH
ShareFile · Citrix
All versions, or not specified · source: KEV
Affected product
CS
Citrix ShareFile storage zones controller