Advisoriesby IbisMicrosoftCVE-2026-65660
Microsoft Office SharePoint: code injection
Fix: upgrade to 16.0.5565.1001 or later (3 fixed versions below)
Improper control of generation of code ('code injection') in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| Microsoft SharePoint Enterprise Server 2016 Product | >= 16.0.0, < 16.0.5565.1001 | 16.0.5565.1001 |
| Microsoft SharePoint Server 2019 Product | >= 16.0.0, < 16.0.10417.20198 | 16.0.10417.20198 |
| Microsoft SharePoint Server Subscription Edition Product | >= 16.0.0, < 16.0.19725.20522 | 16.0.19725.20522 |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-94
- www.cve.org/CVERecord?id=CVE-2026-65660
- nvd.nist.gov/vuln/detail/CVE-2026-65660
- msrc.microsoft.com/update-guide/vulnerability/CVE-2026-65660
- blog.previdian.com/cve-2026-65660-previdian-observes-two-stage-sharepoint-exploitation-attempts/
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-65660