CVE-2023-33659

Public Exploit

Description

A heap buffer overflow vulnerability exists in NanoMQ 0.17.2. The vulnerability can be triggered by calling the function nmq_subinfo_decode() in the file mqtt_parser.c. An attacker could exploit this vulnerability to cause a denial of service attack.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.11%
Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/emqx/nanomq product
https://github.com/emqx/nanomq/issues/1154 third party advisory issue tracking exploit
https://github.com/nanomq/NanoNNG/pull/509/commits/6815c4036a2344865da393803ecdb7af27d8bde1 patch

Frequently Asked Questions

What is the severity of CVE-2023-33659?
CVE-2023-33659 has been scored as a high severity vulnerability.
How to fix CVE-2023-33659?
To fix CVE-2023-33659, 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-2023-33659 being actively exploited in the wild?
It is possible that CVE-2023-33659 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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