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CVE-2026-65660Microsoft SharePoint Server Remote Code Execution Vulnerability

Improper control of generation of code ('code injection') in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.

8.8 HIGHEPSS 9.85%⚡ Known Exploited (CISA KEV)NVD: Analyzed

OverviewAffected ProductsReferences
NVD CVE.org

Overview

Severity

ScoreSeverityVersionVector String
8.8HIGH3.1microsoft (CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8HIGH3.1microsoft (CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

CISA required action

⚡ Known exploited · remediation due Sep 28, 2026

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” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Details

CVE ID
CVE-2026-65660
Status
Analyzed
Assigner (CNA)
microsoft
Published
Aug 11, 2026
Last modified
2026-10-30 17:20 UTC
Weaknesses
  • CWE-94 · Improper Control of Generation of Code ('Code Injection')

Sources

Refreshed hourly from the sources above. Last fetched 2026-11-08 08:03 UTC.