What is CVE-2026-65816?

CVE-2026-65816 is a critical-severity vulnerability in Microsoft Azure Web Apps, classified under Use of Incorrectly-Resolved Name or Reference. CVSS score: 10.0/10. Published 2026-08-20.

How severe is CVE-2026-65816?

Critical severity. CVSS v3 base score is 10.0 out of 10.

Vulnerability in Microsoft Azure Web Apps

CVE-2026-65816

Use of incorrectly-resolved name or reference in Azure Arc allows an unauthorized attacker to elevate privileges over a network.

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

Affected products

Microsoft Azure Web Apps

Weakness classification (CWE)

CWE-706 — Use of Incorrectly-Resolved Name or Reference

References

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

Frequently asked questions

What is CVE-2026-65816?: CVE-2026-65816 is a critical-severity vulnerability in Microsoft Azure Web Apps, classified under Use of Incorrectly-Resolved Name or Reference. CVSS score: 10.0/10. Published 2026-08-20.
How severe is CVE-2026-65816?: Critical severity. CVSS v3 base score is 10.0 out of 10.