Memory allocation with excessive size value in the MQTT 3.1.1 compatibility adapter in AWS aws-c-mqtt before 0.16.2 might allow a remote actor to cause a denial of service of the client application.



To remediate this issue, users should upgrade to aws-c-mqtt 0.16.2 or later, or to an AWS Common Runtime or AWS IoT Device SDK release that bundles it.
Advisories

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Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Thu, 29 Oct 2026 02:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 23 Oct 2026 00:45:00 +0000

Type Values Removed Values Added
Description Memory allocation with excessive size value in the MQTT 3.1.1 compatibility adapter in AWS aws-c-mqtt before 0.16.2 might allow a remote actor to cause a denial of service of the client application. To remediate this issue, users should upgrade to aws-c-mqtt 0.16.2 or later, or to an AWS Common Runtime or AWS IoT Device SDK release that bundles it.
Title Memory allocation with excessive size value in the MQTT 3.1.1 compatibility adapter in aws-c-mqtt
First Time appeared Aws
Aws aws-c-mqtt
Weaknesses CWE-789
CPEs cpe:2.3:a:aws:aws-c-mqtt:*:*:*:*:*:*:*:*
Vendors & Products Aws
Aws aws-c-mqtt
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 8.2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: AMZN

Published:

Updated: 2026-10-29T01:52:06.755Z

Reserved: 2026-10-22T13:18:17.258Z

Link: CVE-2026-115417

cve-icon Vulnrichment

Updated: 2026-10-29T01:50:26.472Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-22T21:17:17.633

Modified: 2026-10-29T02:16:50.483

Link: CVE-2026-115417

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-26T22:53:03Z

Weaknesses