What’s Vulnerable › Vulnerabilities

CVE-2023-34488

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-06-12 · updated 2026-06-17
• Weakness: CWE-787

Description

NanoMQ 0.17.5 has a one-byte heap-based buffer over-read in the conn_handler function of mqtt_parser.c when it processes malformed messages.

Affected products

• nanomq: 0.17.5

References

• https://github.com/emqx/nanomq/issues/1181
• https://github.com/emqx/nanomq/issues/1181

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