What’s Vulnerable › Vulnerabilities

CVE-2017-2893

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 24.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2017-11-07 · updated 2026-06-17
• Weakness: CWE-476

Description

An exploitable NULL pointer dereference vulnerability exists in the MQTT packet parsing functionality of Cesanta Mongoose 6.8. An MQTT SUBSCRIBE packet can cause a NULL pointer dereference leading to server crash and denial of service. An attacker needs to send a specially crafted MQTT packet over the network to trigger this vulnerability.

Affected products

• Cesanta Mongoose: 6.8

References

• https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0400
• https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0400

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