What’s Vulnerable › Vulnerabilities

CVE-2023-33659

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-06-06 · updated 2026-06-17
• Weakness: CWE-787

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.

Affected products

• nanomq: 0.17.2

References

• https://github.com/emqx/nanomq
• https://github.com/emqx/nanomq/issues/1154
• https://github.com/nanomq/NanoNNG/pull/509/commits/6815c4036a2344865da393803ecdb7af27d8bde1
• https://github.com/emqx/nanomq
• https://github.com/emqx/nanomq/issues/1154
• https://github.com/nanomq/NanoNNG/pull/509/commits/6815c4036a2344865da393803ecdb7af27d8bde1

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