Summary
Impact: Remote Code Execution. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.
Details
According to the CVSS metric, the attack complexity is high (AC:H). What does this mean for this vulnerability?
An attacker would need specific conditions to be in place (i.e. particular protocol settings, or configurations, etc.) before an attack could succeed, which reduces the likelihood of widespread or opportunistic exploitation.
How could an attacker exploit this vulnerability?
An authenticated attacker with permission to modify tags on an Azure virtual machine could add a specially crafted tag. If an administrator later uses the affected Azure CLI repair command to copy tags from that virtual machine on Windows, the tag could be interpreted as a command and execute code with the administrator's permissions.
Security updates
2.2.1 — https://github.com/Azure/azure-cli-extensions/blob/main/src/vm-repair/HISTORY.rst
Vulnerabilities 1
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High 8.0
Microsoft Azure CLI Remote Code Execution Vulnerability
Improper neutralization of special elements used in a command ('command injection') in Microsoft Azure CLI allows an authorized attacker to execute code over a network.
Revision history
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#1
Information published.
References
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CVE-2026-83948 Microsoft Azure CLI Remote Code Execution Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83948
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Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
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Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
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Common Vulnerability Scoring System
https://www.first.org/cvss