CVE-2024-21646

Microsoft Azure Uamqp remote code execution

9.8 CRITICALEPSS 5.11%

Published9 Jan 2024

Description

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.

CVSS 3.1 breakdown

Attack vectorNetwork

Attack complexityLow

Privileges requiredNone

User interactionNone

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Affected products

Microsoft Azure Uamqp< 2024-01-01

Remediation

Fixed in

Microsoft Azure Uamqp≥ 2024-01-01

Frequently asked

Is CVE-2024-21646 being actively exploited?

CVE-2024-21646 is not in the CISA KEV catalog. Its EPSS exploit probability is 5.11%.

How severe is CVE-2024-21646?

CVE-2024-21646 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 5.11% probability of exploitation.

Which products are affected by CVE-2024-21646?

Affected products include Microsoft Azure Uamqp.

How do I fix CVE-2024-21646?

Upgrade affected software to a fixed version, for example Microsoft Azure Uamqp 2024-01-01 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2024-21646 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.