What is CVE-2026-23651?

CVE-2026-23651 is a medium-severity vulnerability in Microsoft Aci Confidential Containers, classified under CWE-625. CVSS score: 6.7/10. Published 2026-03-05.

How severe is CVE-2026-23651?

Medium severity. CVSS v3 base score is 6.7 out of 10.

Vulnerability in Microsoft Aci Confidential Containers

CVE-2026-23651

Permissive regular expression in Azure Compute Gallery allows an authorized attacker to elevate privileges locally.

Published 2026-03-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.006 (47.8th percentile), scored 2026-10-19.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 47.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: +0.000

Affected products

Weakness classification (CWE)

CWE-625

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-23651 (vendor-advisory, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2026-23651?: CVE-2026-23651 is a medium-severity vulnerability in Microsoft Aci Confidential Containers, classified under CWE-625. CVSS score: 6.7/10. Published 2026-03-05.
How severe is CVE-2026-23651?: Medium severity. CVSS v3 base score is 6.7 out of 10.