Review reviewHigh

CVE-2026-26147

Microsoft Azure Stack HCI, azure stack hci

Improper input validation in Azure Compute Gallery allows an authorized attacker to disclose information over a network.

CVSS
7.7
EPSS
0.58%
44.4% percentile
CISA KEV
Not listed
Published
2026.05.23
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.58%
Technical severityCVSS 7.7

Vulnerability overview

Improper input validation in Azure Compute Gallery allows an authorized attacker to disclose information over a network.

Affected product and versions

Product
Microsoft Azure Stack HCI, azure stack hci
Affected versions
See the vendor advisory and NVD configuration data
Fixed versions
No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Microsoft Azure Stack HCI, azure stack hci and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
CWE
CWE-20
CVE-2026-26147 — Microsoft Azure Stack HCI, azure stack hci | SECUFOCUS NOW