Strix
26.1K

CVE-2017-2893

HIGHCVSS 7.5/10EPSS 26.58%

Last modified

CVE-2017-2893 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 26.58% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability
26.58%

97.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CesantaMongoose6.8

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2017-2893?
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.
How severe is CVE-2017-2893?
CVE-2017-2893 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 26.58% probability of exploitation in the next 30 days.
How do I fix CVE-2017-2893?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-2893?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST