Memory allocation with excessive size value in the MQTT 3.1.1 compatibility adapter in aws-c-mqtt
Impact
AWS aws-c-mqtt before 0.16.2 has a memory allocation issue with excessive size value in the MQTT 3.1.1 compatibility adapter, which might allow a remote actor to cause a denial of service. The affected version is 0.9.1 and earlier. A remote actor is required to exploit this weakness.
Summarized by @cf/meta/llama-3.3-70b-instruct-fp8-fast. Verify details against the original sources.Affected packages
Affected products
Vendor version evidence. Product records are separate from automatic dependency matching.
AWS · AMZN
aws-c-mqtt
1 range
AWS · AMZN
aws-c-mqtt
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affected
0.9.1 → before 0.16.2
custom versions
Other versions: unaffected
Original source 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.
Inside the record
Evidence available
Describes the evidence in this view, not whether the product is safe.
Original records
CVE-2026-115417View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.
cve.new JSON →Underlying weaknesses
The source’s classification of what caused the vulnerability.
Environment requirements
These conditions apply together as specified by the publisher. A matching product name alone does not establish exposure.
AMZN · platform conditions
Any condition may hold
Any condition may hold
Vulnerable product
cpe:2.3:a:aws:aws-c-mqtt:*:*:*:*:*:*:*:*From (inclusive): 0.9.1
Before: 0.16.2
Original applicability statements
[
{
"operator": "OR",
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:a:aws:aws-c-mqtt:*:*:*:*:*:*:*:*",
"versionStartIncluding": "0.9.1",
"versionEndExcluding": "0.16.2"
}
]
}
]
}
]Contributing organizations · 2
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What changed
Follow changesLarge field values are marked as truncated previews. Original source snapshots remain retained.