CVE-2022-41352VulnerabilityPublished 10/20/2022Updated 10/24/2026
CVE-2022-41352: Synacor Zimbra Collaboration Suite (ZCS) Arbitrary File Upload Vulnerability
Affects Synacor Zimbra Collaboration Suite (ZCS)Source CISA KEV
Severity
HighNo CVSS score published yet
- Exploitation
Actively exploited – in CISA KEV since 10/20/2022
- KEV deadline
- 11/10/2022
- Ransomware
- Used in ransomware campaigns
- EPSS
- 95.5% chance of exploitation in 30 days – higher than 99% of CVEs
What to do
CISA required action
Apply updates per vendor instructions.
Description
Synacor Zimbra Collaboration Suite (ZCS) allows an attacker to upload arbitrary files using cpio package to gain incorrect access to any other user accounts.