What is CVE-2026-65668?

CVE-2026-65668 is a high-severity vulnerability in Microsoft Purview Ediscovery, classified under Improper Access Control. CVSS score: 8.8/10. Published 2026-08-07.

How severe is CVE-2026-65668?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Microsoft Purview Ediscovery

CVE-2026-65668

Improper access control in Microsoft Purview eDiscovery allows an authorized attacker to elevate privileges over a network.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Microsoft Purview Ediscovery
Microsoft Purview_ediscovery

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

secure@microsoft.com (vendor-advisory, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2026-65668?: CVE-2026-65668 is a high-severity vulnerability in Microsoft Purview Ediscovery, classified under Improper Access Control. CVSS score: 8.8/10. Published 2026-08-07.
How severe is CVE-2026-65668?: High severity. CVSS v3 base score is 8.8 out of 10.