CVE-2024-29195

highpriority · track · 34EPSS 0.050 · 92 %ileDEEURUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
5.01% (92nd) EPSS
CVSS 8.1 · high
Is it mine?
7 products
Check your exposure
Who says so?
5 sources
cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

The azure-c-shared-utility is a C library for AMQP/MQTT communication to Azure Cloud Services. This library may be used by the Azure IoT C SDK for communication between IoT Hub and IoT Hub devices. An attacker can cause an integer wraparound or under-allocation or heap buffer overflow due to vulnerabilities in parameter checking mechanism, by exploiting the buffer length parameter in Azure C SDK, which may lead to remote code execution. Requirements for RCE are 1. Compromised Azure account allowing malformed payloads to be sent to the device via IoT Hub service, 2. By passing IoT hub service max message payload limit of 128KB, and 3. Ability to overwrite code space with remote code. Fixed in commit https://github.com/Azure/azure-c-shared-utility/commit/1129147c38ac02ad974c4c701a1e01b2141b9fe2.

01

cvss

Technical severity, 0–10. One row per scoring source.

8.1
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6–8.1

v3.18.1highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 2.2 · impact 5.9
v3.16mediumAV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:Lsecondary · FSTEC (BDU) RU
v3.16mediumCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:Lsecondary · ENISA EU
v3.16mediumCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:Lsecondary · security-advisories@github.comexploitability 0.5 · impact 5.5
v3.17.4highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)
02

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-120USCWE-120US
04

affected products (7)

Products and version ranges known to be affected.

05

advisories (1)

Vendor and ecosystem advisories describing this.

  • WID-SEC-W-2024-0710Microsoft Azure: Schwachstelle ermöglicht CodeausführungDeutsch2024-03-25csaf · cert_bundDE

    Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in Microsoft Azure ausnutzen, um beliebigen Programmcode auszuführen.

06

also known as (3)

Other names and identifiers for this entity.

07

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bducert_bundnvdNVDCVE.orgMITRE
published 2024-03-26modified 2026-09-23
08

references (7)

External citations — patches, advisories, analysis.

scry

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