Live › vulnerability › CVE-2026-65660
Go to dashboardSharePoint Server code injection (CWE-94, CVSS 8.8): a low-privileged authenticated user can run code on the server over the network. Patched Aug 11, 2026; exploited in the wild (CISA KEV Sep 25). Chained with other SharePoint flaws it gives pre-auth RCE where anonymous access is allowed. Server 2016 and 2019 are end of life since Jul 15, 2026.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 19:11 UTC, 5h before NVD. All times on this page are UTC.
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.
| Product | Ecosystem | Affected | Fixed in |
|---|---|---|---|
| Microsoft SharePoint | vendor | – | – |
| SharePoint Enterprise Server 2016 | vendor | < 16.0.5565.1001 | 16.0.5565.1001 |
| SharePoint Server 2019 | vendor | < 16.0.10417.20198 | 16.0.10417.20198 |
| SharePoint Server Subscription Edition | vendor | < 16.0.19725.20522 |
| 16.0.19725.20522 |
| microsoft sharepoint server | vendor | < 16.0.19725.20522 | 16.0.19725.20522 |
| microsoft sharepoint server | vendor | = 2016 | – |
| microsoft sharepoint server | vendor | = 2019 | – |
16.0.5565.1001 (2016), 16.0.10417.20198 (2019) or 16.0.19725.20522 (Subscription Edition)16.0.5565.1001, 2019 to 16.0.10417.20198, Subscription Edition to 16.0.19725.20522 (KB5002893 for Subscription Edition)Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
Microsoft SharePoint contains a code injection vulnerability which could allow an authorized attacker to execute code over a network.
CISA 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.
This page as .md · .json · in your agent: get_signal("CVE-2026-65660")
CISA KEV catalog, Creative Commons 0 · NVD data is provided by NIST and is public domain. Posts quoted belong to their authors.