CVE-2026-64901
Multiple vulnerabilities have been discovered in Microsoft products. Some of them allow an attacker to cause remote arbitrary code execution, privilege escalation and remote denial of service.
CSIRTS triage
- What
- Multiple vulnerabilities across Microsoft products enable remote code execution, privilege escalation, and denial of service.
- Who is affected
- Deployments of Microsoft products affected by the listed CVEs.
- Urgency
- Highly urgent; multiple RCE vulnerabilities across the Microsoft product portfolio warrant immediate patching.
- Action
- Apply Microsoft August 2026 security updates across all affected products.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Moderate exploitation risk1.9% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 78% of all EPSS-scored CVEs.
Advisory coverage (4)
- unknownMultiple vulnerabilities in Microsoft products (August 12, 2026)cert-fr-avis · 2026-08-12
- unknownNCSC-2026-0286 [1.00] [M/H] Vulnerabilities patched in Microsoft Officencsc-nl · 2026-08-11
- highCVE-2026-64901: Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker…nvd · 2026-08-11
- highCVE-2026-64901: Microsoft SharePoint Server Remote Code Execution Vulnerabilitymsrc · 2026-08-11
External references
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