7.5

CVSS Score

3.1

-

CVSS Score

Basic Information

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CVE-2024-43499

CVE-2024-43499: .NET and Visual Studio Denial of Service Vulnerability

.NET and Visual Studio Denial of Service Vulnerability

(GitHub Advisory)

Miggo Vulnerability Database

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CVE-2024-43499

CVE-2024-43499:

7.5

CVSS Score

3.1

-

CVSS Score

Basic Information

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Technical Details

SSVC / BOD 26-04 ↗

Exploitation NoneAutomatable YesTech Impact Partial

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Package Name	Ecosystem	Vulnerable Versions	First Patched Version
System.Formats.Nrbf	nuget	< 9.0.0	9.0.0

Technical Details

Vulnerability Intelligence
Miggo AI

Root Cause Analysis

The vulnerability stems from incorrect input validation in the NrbfDecoder component. While the advisory lacks explicit function names, NRBF deserialization vulnerabilities typically occur in core decoding methods. The Decode method is the entry point for parsing NRBF data, and improper validation of nested structures (e.g., arrays, object graphs) could lead to DoS. Object reference handling methods like ReadObjectReference are also common failure points for circular reference attacks. Confidence is medium as these are educated guesses based on NRBF implementation patterns and the described vulnerability type, though without patch details or CWE mappings, absolute certainty isn't possible.

Vulnerable functions

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WAF Protection Rules

WAF Rule

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Reasoning

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