CVE CVE-2026-20963

CVE-2026-20963 — Microsoft SharePoint Deserialization of Untrusted Data Vulnerability

CISA KEV · Mar 18, 2026 · CRITICAL cve actively-exploited kev
Microsoft SharePoint contains a deserialization of untrusted data vulnerability that allows an unauthorized attacker to execute code over a network. Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CVSS Score
N/A
CRITICAL
Vendor
Microsoft
Product
SharePoint

Microsoft SharePoint contains a deserialization of untrusted data vulnerability that allows an unauthorized attacker to execute code over a network. Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

This article is sourced from CISA KEV. Read the full story at the original source below.

cve actively-exploited kev
Original Source
CISA KEV
https://www.cisa.gov/known-exploited-vulnerabilities-catalog
Read Full Story ↗