Vulnerability
CVE-2026-65660 — Microsoft SharePoint Code Injection Vulnerability
Exploited in the wild 3 stories · 2 outlets
Impacted if
Microsoft SharePoint
CISA Known Exploited Vulnerabilities
Added on 2026-09-25, federal remediation due 2026-09-28. Microsoft SharePoint contains a code injection vulnerability which could allow an authorized attacker to execute code over a network.
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” (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.
First seen by AX-NEWS · latest story . Severity: NVD, or the CVE record while the NVD has not scored it. This product uses data from the NVD API but is not endorsed or certified by the NVD.
Coverage
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Microsoft SharePoint Flaw CVE-2026-65660 Now Exploited in Attacks
SecurityWeek
Cybersecurity
CISA added CVE-2026-65660 to its KEV catalog, giving federal agencies a patching deadline of September 28. The post Microsoft SharePoint Flaw CVE-2026-65660 Now Exploited in Attacks appeared first on SecurityWeek .