THREAT OPS › Threat News › [CISA KEV] CVE-2026-58644 — Microsoft SharePoint: Microsoft SharePoint Deserialization of Untrusted Data Vulnerability
[CISA KEV] CVE-2026-58644 — Microsoft SharePoint: Microsoft SharePoint Deserialization of Untrusted Data Vulnerability
CVE: CVE-2026-58644 Vendor: Microsoft Product: SharePoint Vulnerability: Microsoft SharePoint Deserialization of Untrusted Data Vulnerability Date Added: 2026-07-16 Required Action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (se
MITRE ATT&CK techniques
Indicators of compromise
- CVE-2026-58644cve
Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-58644