Known exploited vulnerability

CVE-2024-45519

Synacor Zimbra Collaboration Suite (ZCS) Command Execution Vulnerability

Past due Added Federal deadline

What is affected

Vendor Synacor
Product Zimbra Collaboration Suite (ZCS)
Weakness CWE-284

The vulnerability

Synacor Zimbra Collaboration Suite (ZCS) contains an unspecified vulnerability in the postjournal service that may allow an unauthenticated user to execute commands.

Required action

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

US federal civilian agencies were required to act by 24 October 2024 under BOD 22-01. The deadline is a compliance date, not a measure of severity — it says nothing about how dangerous the flaw is to anyone else.

Where this comes from

Every field on this page is taken from the CISA Known Exploited Vulnerabilities catalog, last synced 12 Nov 2026, 00:29. Nothing here is our own assessment. For the technical scoring, see the NVD record below.

NVD record ↗ CVE.org record ↗

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