What is the CVSS score of CVE-2024-21646?

CVE-2024-21646 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 2.5%.

Which versions of Azure Uamqp are affected by CVE-2024-21646?

Organizations using Azure uAMQP face critical risk from CVE-2024-21646, a code injection vulnerability rated CVSS 9.8.. A patch is available.

How to fix or mitigate CVE-2024-21646?

Within 7 days: Identify all affected systems and apply vendor patches promptly. Validate that input sanitization is in place for all user-controlled parameters.

Azure Uamqp CVE-2024-21646

CRITICAL

Code Injection (CWE-94)

2024-01-09 security-advisories@github.com

Microsoft RCE Code Injection Azure Uamqp

9.8

CVSS 3.1 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

9.8 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:34 vuln.today

Patch released

Mar 28, 2026 - 19:34 nvd

Patch available

CVE Published

Jan 09, 2024 - 01:15 nvd

CRITICAL 9.8

DescriptionGitHub Advisory

Azure uAMQP is a general purpose C library for AMQP 1.0. The UAMQP library is used by several clients to implement AMQP protocol communication. When clients using this library receive a crafted binary type data, an integer overflow or wraparound or memory safety issue can occur and may cause remote code execution. This vulnerability has been patched in release 2024-01-01.

AnalysisAI

Azure uAMQP is a general purpose C library for AMQP 1.0. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Code Injection vulnerability could allow attackers to inject and execute arbitrary code within the application.

Technical ContextAI

This vulnerability is classified as Code Injection (CWE-94), which allows attackers to inject and execute arbitrary code within the application. Azure uAMQP is a general purpose C library for AMQP 1.0. The UAMQP library is used by several clients to implement AMQP protocol communication. When clients using this library receive a crafted binary type data, an integer overflow or wraparound or memory safety issue can occur and may cause remote code execution. This vulnerability has been patched in release 2024-01-01. Affected products include: Microsoft Azure Uamqp.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Never evaluate user-controlled input as code. Use sandboxing, disable dangerous functions, apply strict input validation.