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Exploit / PoChighExploited in the wild

U.S. CISA adds Microsoft SharePoint and Zimbra flaws to its Known Exploited Vulnerabilities catalog

Security Affairsby @securityaffairs ()1 min read1 · 1 read
Analyze CVE-2026-20963 with Vani AIImpact, affected versions, exploitation, mitigations and detection

Vulnerabilities mentioned

All
CVEVulnerabilityCVSSEPSSSignalsPublished
CVE-2025-66376
Stored Cross-Site Scripting in Synacor Zimbra Collaboration Suite Classic UI
6.120%KEV
KEV
CVE-2026-20963
Deserialization RCE in Microsoft SharePoint Exploited in the Wild
9.829%KEV
KEV

From the original article

1 min read at securityaffairs.com

U. S. Cybersecurity and Infrastructure Security Agency (CISA) adds SharePoint and Zimbra flaws to its Known Exploited Vulnerabilities catalog.

Security Affairs

By @securityaffairs · securityaffairs.com

Read the full article at Security Affairs

A short excerpt; the article and its images belong to the publisher. Summary, key facts and assessment above are AI-written from the article and can be wrong.