← CVE catalog

CVE-2020-7796

Critical CVSS 9.8 Known exploited

Published 2020-02-18 · last changed 2026-06-17 · added to CISA KEV 2026-02-17

This one is being exploited in the wild.

CISA added CVE-2020-7796 to the Known Exploited Vulnerabilities catalog on 2026-02-17. Federal agencies are required to remediate it on a deadline. If you have affected machines, this is the class of finding that moves ahead of the rest of the queue.

The fix

We hold no Microsoft remediation data for CVE-2020-7796, which normally means it is not a Windows CVE. For non-Microsoft software the fix is the vendor's own updated release, and the affected versions are listed below.

What it is

Zimbra Collaboration Suite (ZCS) before 8.8.15 Patch 7 allows SSRF when WebEx zimlet is installed and zimlet JSP is enabled.

Sources

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H