CVE-2026-65660
What it is
Improper control of generation of code ('code injection') in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
At a glance
- Exploitability
- Can be exploited over the network with a low-privilege account. High risk of data exposure, data tampering, service disruption.
- In the wild
- CISA lists this as exploited in real attacks. Treat as urgent.
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- ReservedThe CVE id was reserved by its CNA
- PublishedDisclosed publicly on CVE.org and NVD
- 2026-09-25 Exploited in the wildAdded to CISA's Known Exploited Vulnerabilities list
- 2026-09-28 Remediation deadlineCISA's due date for federal agencies to fix it
- Last updatedMost recent change to the record
Details
- Published
- Last modified
- Added to CISA KEV
- 2026-09-25
- Exploit probability
- 8.2% · EPSS, next 30 days
- Weakness
- CWE-94 · Code injection
- Record status
- Analyzed
Affected
- Microsoft Sharepoint Server < 16.0.19725.20522
- Microsoft Sharepoint Server 2016
- Microsoft Sharepoint Server 2019
Attack profile CVSS 3.1 · 8.8
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
