CVE-2026-115417

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://aws.amazon.com/security/security-bulletins/2026-147-aws/
https://github.com/awslabs/aws-c-mqtt/releases/tag/v0.16.2
https://github.com/awslabs/aws-c-mqtt/security/advisories/GHSA-g3x5-86mr-65p5

Configurations

No configuration.

History

22 Oct 2026, 21:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-22 21:17

Updated : 2026-10-29 02:16

NVD link : CVE-2026-115417

Mitre link : CVE-2026-115417

CVE.ORG link : CVE-2026-115417

JSON object : View

Products Affected

No product.

CWE

CWE-789

Memory Allocation with Excessive Size Value

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