CVE-2026-109462: Azure Firmware Security Feature Bypass Vulnerability

Q: Who is realistically exposed to this issue?

Systems using Microsoft Azure Virtual Machines with the affected Azure Firmware component are in scope. Exploitation is local and requires an authorized attacker with high privileges.

Q: What does an attacker need to exploit it?

The attacker must already have authorized local access with high privileges. No user interaction is required.

Q: What security impact can exploitation have?

The stated impact is integrity-related: an attacker can bypass a firmware security feature because certificate revocation is not properly checked. The provided severity vector does not indicate confidentiality or availability impact.

Published Nov 10, 2026

Updated

Azure Firmware Security Feature Bypass Vulnerability

Other sources

Improper check for certificate revocation in Azure Firmware allows an authorized attacker to bypass a security feature locally.

— Microsoft

Affected Software

1 affected componentFixes available

Microsoft Azure Virtual Machines<2610

2610

Remediation

Recommended actions to resolve this vulnerability, in priority order.

Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 2610

Event History

Nov 10, 2026

CVE Published

via Microsoft·04:00 PM

Data Sourced

via Microsoft·04:00 PM

DescriptionSeverityWeakness

Data Sourced

via Microsoft·04:00 PM

Affected Software

CVE Published

via MITRE·06:15 PM

Data Sourced

via MITRE·06:15 PM

DescriptionSeverity

Data Sourced

via NVD·07:18 PM

DescriptionSeverityWeakness

Frequently Asked Questions

Who is realistically exposed to this issue?

Systems using Microsoft Azure Virtual Machines with the affected Azure Firmware component are in scope. Exploitation is local and requires an authorized attacker with high privileges.

What does an attacker need to exploit it?

The attacker must already have authorized local access with high privileges. No user interaction is required.

What security impact can exploitation have?

The stated impact is integrity-related: an attacker can bypass a firmware security feature because certificate revocation is not properly checked. The provided severity vector does not indicate confidentiality or availability impact.

CVE-2026-109462: Azure Firmware Security Feature Bypass Vulnerability

Other sources

Affected Software

Remediation

Event History

Frequently Asked Questions

Who is realistically exposed to this issue?

What does an attacker need to exploit it?

What security impact can exploitation have?

Company

Resources

Contact

Frequently Asked Questions

Who is realistically exposed to this issue?

What does an attacker need to exploit it?

What security impact can exploitation have?