What is CVE-2026-65806?

CVE-2026-65806 is a medium-severity vulnerability in Microsoft Azure Cyclecloud, classified under Missing Authorization. CVSS score: 6.5/10. Published 2026-08-11.

How severe is CVE-2026-65806?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Auth bypass in Microsoft Azure Cyclecloud

CVE-2026-65806

Missing authorization in Azure CycleCloud allows an authorized attacker to disclose information over a network.

Vulnerability class: Broken Access Control

Published 2026-08-11 · last modified 2026-08-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.008 (56.1th percentile), scored 2026-09-26.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 56.1% 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: 0.008 · change: +0.003

Affected products

Microsoft Azure Cyclecloud
Microsoft Azure Cyclecloud 8.9.2 — versions 8.9.2

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

Azure CycleCloud Information Disclosure Vulnerability (vendor-advisory, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2026-65806?: CVE-2026-65806 is a medium-severity vulnerability in Microsoft Azure Cyclecloud, classified under Missing Authorization. CVSS score: 6.5/10. Published 2026-08-11.
How severe is CVE-2026-65806?: Medium severity. CVSS v3 base score is 6.5 out of 10.