What is CVE-2026-47643?

CVE-2026-47643 is a critical-severity vulnerability in Microsoft Azure Stack Edge, classified under External Control of File Name or Path. CVSS score: 9.8/10. Published 2026-06-09.

How severe is CVE-2026-47643?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Microsoft Azure Stack Edge

CVE-2026-47643

External control of file name or path in Azure Stack Edge allows an unauthorized attacker to execute code over a network.

Published 2026-06-09 · last modified 2026-07-23.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.010 (60.6th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 61st percentile — 60.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.010 · change: +0.002

Affected products

Microsoft Azure Stack Edge — versions 2.2.0
Microsoft Azure Stack Edge

Weakness classification (CWE)

References

Azure Stack Edge Remote Code Execution Vulnerability (vendor-advisory, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2026-47643?: CVE-2026-47643 is a critical-severity vulnerability in Microsoft Azure Stack Edge, classified under External Control of File Name or Path. CVSS score: 9.8/10. Published 2026-06-09.
How severe is CVE-2026-47643?: Critical severity. CVSS v3 base score is 9.8 out of 10.