What is CVE-2026-23665?

CVE-2026-23665 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. Linux Azure Diagnostic extension (LAD) Elevation of Privilege Vulnerability

Which CVE IDs does CVE-2026-23665 cover?

CVE-2026-23665 covers the following CVE IDs: CVE-2026-23665. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-23665?

CVE-2026-23665 has a CVSS v3 base score of 7.8, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2026-23665?

CVE-2026-23665 affects 1 product, including: Azure Linux Virtual Machines with Azure Diagnostics extension.

CVE-2026-23665HighCVSS 7.8

Linux Azure Diagnostic extension (LAD) Elevation of Privilege Vulnerability

Vendor

Microsoft Security Response Center (MSRC)

Published

May 31, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-23665 →

📋 Description

Heap-based buffer overflow in Azure Linux Virtual Machines allows an authorized attacker to elevate privileges locally.

🎯 Affected products1

Azure Linux Virtual Machines with Azure Diagnostics extension

✅ Remediation

KBRelease Notes (Security Update) — fixed build 2.1.24

🔗 References (2)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-23665
patchhttps://learn.microsoft.com/en-us/cli/azure/extension?view=azure-cli-latest#az-extension-update