CVE-2026-21537
Analyzed
Analyzed - Analysis Complete
Code Injection in Microsoft Defender for Linux Enables Remote Execution
Publication date: 2026-02-10
Last updated on: 2026-02-11
Assigner: Microsoft Corporation
Description
Description
Improper control of generation of code ('code injection') in Microsoft Defender for Linux allows an unauthorized attacker to execute code over an adjacent network.
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| microsoft | defender_for_endpoint | * |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-94 | The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is an improper control of code generation, also known as code injection, in Microsoft Defender for Linux. It allows an unauthorized attacker to execute arbitrary code over an adjacent network.
How can this vulnerability impact me? :
The vulnerability can have a severe impact as it allows an attacker to execute code remotely without any user interaction or privileges. This can lead to complete compromise of the affected system, including full confidentiality, integrity, and availability loss.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
I don't know
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