CVE-2026-21224
Unknown Unknown - Not Provided
Stack-Based Buffer Overflow in Azure Connected Machine Agent Enables Privilege Escalation

Publication date: 2026-01-13

Last updated on: 2026-01-13

Assigner: Microsoft Corporation

Description
Stack-based buffer overflow in Azure Connected Machine Agent allows an authorized attacker to elevate privileges locally.
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Meta Information
Published
2026-01-13
Last Modified
2026-01-13
Generated
2026-06-16
AI Q&A
2026-01-14
EPSS Evaluated
2026-06-15
NVD
CVE-2026-21224
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
microsoft azure_connected_machine_agent *
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-121 A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
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Executive Summary

This vulnerability is a stack-based buffer overflow in the Azure Connected Machine Agent that allows an authorized attacker to elevate their privileges locally on the affected system. [1]

Impact Analysis

An attacker who is already authorized on the system can exploit this vulnerability to gain higher privileges, potentially allowing them to perform actions that are normally restricted, which can lead to significant security risks. [1]

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