Risk Letters

Exploited vulnerability

CVE-2021-22941

TLP:CLEAR

Citrix ShareFile Improper Access Control Vulnerability

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

Facts

  • Vendor: Citrix
  • Product: ShareFile
  • CVSS: 9.8
  • EPSS (probability of exploitation within 30 days): 53.6 %
  • On CISA's Known Exploited Vulnerabilities list since: 25 March 2022
  • First known exploitation: 25 March 2022
  • Used in ransomware campaigns (per CISA): Yes
  • CISA's deadline for US federal agencies: 15 April 2022
  • Weakness: CWE-284
  • First seen by Risk Letters: 25 March 2022

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Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD