What’s Vulnerable › Vulnerabilities

CVE-2019-13120

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-10-07 · updated 2026-06-17
• Weakness: CWE-125

Description

Amazon FreeRTOS up to and including v1.4.8 lacks length checking in prvProcessReceivedPublish, resulting in untargetable leakage of arbitrary memory contents on a device to an attacker. If an attacker has the authorization to send a malformed MQTT publish packet to an Amazon IoT Thing, which interacts with an associated vulnerable MQTT message in the application, specific circumstances could trigger this vulnerability.

Affected products

• Amazon Web Services Freertos: through 1.4.8

References

• https://aws.amazon.com/cn/freertos/security-updates/
• https://aws.amazon.com/cn/freertos/security-updates/

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