CVE-2026-115417High· 7.5▾ TwilightA flaw was found in aws-c-mqtt. A remote attacker can cause a Denial of Service (DoS) in client applications due to improper memory allocation handling within the MQTT (Message Queuing Telemetry Transport) compatibility adapter. By trigger…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 41.3 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Oct 25.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CSAF
Last analysed / modified upstream
0.4%
A flaw was found in aws-c-mqtt. A remote attacker can cause a Denial of Service (DoS) in client applications due to improper memory allocation handling within the MQTT (Message Queuing Telemetry Transport) compatibility adapter. By triggering an excessive memory allocation request, an attacker can exhaust available system memory, causing the application to crash or become unresponsive.
aws-c-mqtt: aws-c-mqtt: Denial of Service via excessive memory allocation. Released 2026-10-22, updated 2026-10-23.
Not affected:
Refer to the advisory for fix availability.
Connected by shared product, vendor, weakness, or advisory.
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