Vulnerability record · CVE-2018-8531 · published 10 October 2018

CVE-2018-8531: Microsoft azure internet of things edge out-of-bounds write vulnerability

Microsoft · Azure Internet Of Things Edge

A remote code execution vulnerability exists in the way that Azure IoT Hub Device Client SDK using MQTT protocol accesses objects in memory, aka "Azure IoT Device Client SDK Memory Corruption Vulnerability." This affects Hub Device Client SDK, Azure IoT Edge.

8.8 CVSS 3.0 High EPSS 15% · top 3.4% CWE-787 · Out-of-bounds write

8.8CVSS 3.0 base score, v2 9.3

15%EPSS exploitation probability, 30 days

NoNot in CISA KEV

2Affected product versions listed by NVD

4References

17 Jun 2026Last modified by NVD

Description

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Azure Internet Of Things Edge Microsoft

Csharp Software Development Kit Microsoft

References

Link	Tags
http://www.securityfocus.com/bid/105472	Third Party AdvisoryVDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8531	PatchVendor Advisory
http://www.securityfocus.com/bid/105472	Third Party AdvisoryVDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8531	PatchVendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2018-8531), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.