CVE-2024-38157

Code execution via AMQP messaging double free

Published Aug 13, 2024 · Updated Jul 10, 2025

Double-free in Microsoft Azure IoT Hub Device Client SDK before 1.12.1 allows local users to execute arbitrary code. The AMQP messaging module releases the same allocation twice; Microsoft has not published the exact triggering input or state. Exploitation requires low local privileges and a high-complexity condition, and successful exploitation runs code in the SDK-hosting process.

CVSS severity7.0
High
EPSS probability0.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Double-free in Microsoft Azure IoT Hub Device Client SDK before 1.12.1 allows local users to execute arbitrary code. The AMQP messaging module releases the same allocation twice; Microsoft has not published the exact triggering input or state. Exploitation requires low local privileges and a high-complexity condition, and successful exploitation runs code in the SDK-hosting process.

The record

CVE
CVE-2024-38157
Published
Aug 13, 2024
Updated
Jul 10, 2025
Vendor
Microsoft
Product
Azure IoT Hub Device Client SDK
Classifications
CWE-415, T1203
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 13, 2024CVE publishedPublication date reported by the CVE source.
  2. Jul 10, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.0.0 <1.12.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Microsoft · Azure IoT Hub Device Client SDKversion=1.0.0 <1.12.1

Published CVSS scores

7.0Microsoft CorporationCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-415Double Free
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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