cve 2026 23665

CVE-2026-23665 is a heap-based buffer overflow vulnerability in the Linux Azure Diagnostic extension (LAD) used with Azure Linux virtual machines. Microsoft and security aggregators classify it as an elevation-of-privilege flaw that allows a local, low-privileged user to escalate to higher privileges on the host if successfully exploited. Discussions on WindowsForum cover the technical details, affected components, and mitigation strategies for this CVE, which is relevant for administrators managing Azure Linux VMs and security professionals tracking Microsoft's vulnerability disclosures.