CVE-2026-23665
HIGHCVSS Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
2Description
Heap-based buffer overflow in Azure Linux Virtual Machines allows an authorized attacker to elevate privileges locally.
Analysis
Privilege escalation in Azure Linux Virtual Machines results from a heap-based buffer overflow that authenticated local users can exploit to gain elevated system access. An attacker with valid credentials can trigger memory corruption to bypass privilege restrictions and assume administrative control of the affected virtual machine. …
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Remediation
Within 24 hours: Inventory all Azure Linux VMs and identify which are exposed; disable non-essential local user accounts and review IAM access logs for suspicious activity. Within 7 days: Implement network segmentation to restrict lateral movement from compromised VMs; enable Azure Security Center monitoring and alerts for privilege escalation attempts. …
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