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.

CVSS 3.1

8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

8.2% chance of exploitation in the next 30 days; higher than 94% of CVEs (scores of 2026-10-25)

CISA KEV

listed 2026-09-25, due 2026-09-28

CWE

CWE-94

Published

2026-08-11

Modified

2026-10-26

Record from

the NVD, synced 2026-10-26

Affected

• microsoft:sharepoint_server

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-65660
• https://blog.previdian.com/cve-2026-65660-previdian-observes-two-stage-sharepoint-exploitation-attempts/
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-65660

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