8.8

CVE-2026-65660

Warnung
Medienbericht

Microsoft SharePoint Server Spoofing Vulnerability

Improper control of generation of code ('code injection') in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Microsoft ≫ Sharepoint Server SwEdition subscription Version < 16.0.19725.20522
Microsoft ≫ Sharepoint Server Version 2016 SwEdition enterprise
Microsoft ≫ Sharepoint Server Version 2019
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25.09.2026: CISA Known Exploited Vulnerabilities (KEV) Catalog

Microsoft SharePoint Code Injection Vulnerability

Schwachstelle

Microsoft SharePoint contains a code injection vulnerability which could allow an authorized attacker to execute code over a network.

Beschreibung

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.

Erforderliche Maßnahmen
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.74% 0.516
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Microsoft 8.8 2.8 5.9
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-94 Improper Control of Generation of Code ('Code Injection')

The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

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https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-65660
Patch
Vendor Advisory
https://blog.previdian.com/cve-2026-65660-previdian-observes-two-stage-sharepoint-exploitation-attempts/
Third Party Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-65660
US Government Resource