CVE-2017-2893

Public Exploit

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 3.0 •
CVSS 2.0 •
EPSS 5.27% Top 15%
Third-Party Advisory talosintelligence.com
Affected: Cesanta Mongoose
Published at:
Updated at:

References

Link Tags
https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0400 exploit third party advisory technical description

Frequently Asked Questions

What is the severity of CVE-2017-2893?
CVE-2017-2893 has been scored as a high severity vulnerability.
How to fix CVE-2017-2893?
To fix CVE-2017-2893, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-2893 being actively exploited in the wild?
It is possible that CVE-2017-2893 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~5% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2017-2893?
CVE-2017-2893 affects Cesanta Mongoose.
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