Risk Letters

Exploited vulnerability

CVE-2022-27925

TLP:CLEAR

Synacor Zimbra Collaboration Suite (ZCS) Arbitrary File Upload Vulnerability

Synacor Zimbra Collaboration Suite (ZCS) contains flaw in the mboximport functionality, allowing an authenticated attacker to upload arbitrary files to perform remote code execution. This vulnerability was chained with CVE-2022-37042 which allows for unauthenticated remote code execution.

Facts

  • Vendor: Synacor
  • Product: Zimbra Collaboration Suite (ZCS)
  • CVSS: 7.2
  • EPSS (probability of exploitation within 30 days): 98.7 %
  • On CISA's Known Exploited Vulnerabilities list since: 11 August 2022
  • First known exploitation: 11 August 2022
  • Used in ransomware campaigns (per CISA): Yes
  • CISA's deadline for US federal agencies: 1 September 2022
  • Weakness: CWE-22
  • First seen by Risk Letters: 11 August 2022

Members see which Nordic sectors the flaw hits, and what to do about it.

Get the full brief

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