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CVE-2026-62874: privilege escalation in Microsoft Azure Billing

An unauthenticated remote attacker can elevate privileges against Azure Billing (CVE-2026-62874) by exploiting insufficient verification of data authenticity. The advisory lists Azure Billing as the affected branch; Microsoft has not published specific fixed-version identifiers in the supplied facts. The flaw requires network access and no prior login or user interaction, allowing an attacker reachable over the network to attempt exploitation.

Published Updated Source: CVE Program, NVD, FIRST EPSS, Vendor advisory

CVSS 3.1
10CRITICAL
EPSS
0.00428
CWE
CWE-345
KEV DUE DATE
Not listed
PATCH
Available

DIRAS TAKE

Treat this as urgent: the vulnerability allows remote, unauthenticated privilege elevation (CVSS 10.0) so prioritize applying Microsoft’s remediation guidance and reduce network exposure to Azure Billing immediately.

What is CVE-2026-62874?

An unauthenticated remote attacker can elevate privileges against Azure Billing (CVE-2026-62874) by exploiting insufficient verification of data authenticity. The advisory lists Azure Billing as the affected branch; Microsoft has not published specific fixed-version identifiers in the supplied facts. The flaw requires network access and no prior login or user interaction, allowing an attacker reachable over the network to attempt exploitation.

Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:L

Which versions of Microsoft Azure Billing are affected?

BRANCHAFFECTEDFIXED
Azure Billing-

Is CVE-2026-62874 being exploited?

There are no public reports of exploitation as of 2026-09-29.

How to fix CVE-2026-62874

  1. Apply Microsoft’s available patch or vendor guidance for Azure Billing as provided.
  2. Restrict network exposure to Azure Billing services to trusted networks and limit public access.
  3. Enable and review access and integrity logs for anomalous activity affecting billing services.
  4. Implement compensating controls per vendor guidance, such as additional input validation or request filtering where possible.

Frequently asked questions

Is CVE-2026-62874 being actively exploited?

There are no public reports of exploitation as of 2026-09-29.

Which Azure Billing versions are affected by CVE-2026-62874?

The advisory identifies the Azure Billing branch as affected but does not list specific version numbers or fixed releases in the provided facts.

Is there a patch for CVE-2026-62874?

A patch is reported as available for Azure Billing in the provided facts; Microsoft should be followed for exact update packages and deployment instructions.

Does CVE-2026-62874 require authentication?

No — the vulnerability permits unauthenticated remote attacks against Azure Billing, allowing privilege elevation without prior credentials.

References