CVE-2024-45519

Critical10.0Published on October 2, 2024

The postjournal service in Zimbra Collaboration (ZCS) before 8.8.15 Patch 46, 9 before 9.0.0 Patch 41, 10 before 10.0.9, and 10.1 before 10.1.1 sometimes allows unauthenticated users to execute commands.

Actively exploited

In the CISA exploited-vulnerabilities catalogue since Oct 3, 2024
US federal agencies must remediate it by Oct 24, 2024 (BOD 22-01)
Attacked 2 days before the vulnerability was made public

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

Source: CISA KEV · Oct 9, 2025 Apr 3, 2025 Oct 9, 2024 Oct 3, 2024 Oct 1, 2024 Oct 1, 2024

CVSS score10.0 / 10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Weakness type (CWE)CWE-78

Vendorssynacor

Affected products

Vendors	Product	Versions
synacor	zimbra collaboration suite	< 8.8.15

Vulnerabilities

Zimbra CVE-2026-73570 Exploited in the Wild: Who Needs to Patch Immediately

CVE-2026-73570 in Zimbra Collaboration is actively exploited. Learn who needs to patch immediately, the vulnerability details, and security steps.

Aug 20, 202623:094 min readRead

This product uses the NVD API but is not endorsed or certified by the NVD.

CVE database

Actively exploited

Affected products

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Zimbra CVE-2026-73570 Exploited in the Wild: Who Needs to Patch Immediately