CISA confirmed this vulnerability is used in real attacks on 25.09.2026. Remediation deadline for US federal agencies: 28.09.2026.
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. https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-65660 ; ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-65660
Improper control of generation of code ('code injection') in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.
| Vendor | Product | Versions | |
|---|---|---|---|
| Microsoft | Microsoft SharePoint Enterprise Server 2016 | 16.0.0 – < 16.0.5565.1001 | |
| Microsoft | Microsoft SharePoint Server 2019 | 16.0.0 – < 16.0.10417.20198 | |
| Microsoft | Microsoft SharePoint Server Subscription Edition | 16.0.0 – < 16.0.19725.20522 | |
| microsoft | sharepoint server | 16.0.0 – < 16.0.19725.20522 | |
| microsoft | sharepoint server 2016 | 16.0.0 – < 16.0.5565.1001 | |
| microsoft | sharepoint server 2019 | 16.0.0 – < 16.0.10417.20198 |
cpe:2.3:a:microsoft:sharepoint_server:*:*:*:*:subscription:*:*:* < 16.0.19725.20522cpe:2.3:a:microsoft:sharepoint_server:2016:*:*:*:enterprise:*:*:*cpe:2.3:a:microsoft:sharepoint_server:2019:*:*:*:*:*:*:*Our free, open-source honeypot sensor waits on ports your server does not use and reports the scanners and attackers that connect to a shared blocklist.