CVE-2023-34488

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2023-34488
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.

7.8 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/emqx/nanomq/issues/1181 Exploit Issue Tracking Patch Vendor Advisory
https://github.com/emqx/nanomq/issues/1181 Exploit Issue Tracking Patch Vendor Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:emqx:nanomq:0.17.5:*:*:*:*:*:*:*
History

15 Jul 2025, 20:15

Type Values Removed Values Added
References (MISC) https://github.com/emqx/nanomq/issues/1181 - Exploit, Issue Tracking, Patch, Vendor Advisory () https://github.com/emqx/nanomq/issues/1181 - Exploit, Issue Tracking, Patch, Vendor Advisory
Summary NanoMQ 0.17.5 is vulnerable to heap-buffer-overflow in the conn_handler function of mqtt_parser.c when it processes malformed messages. 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.

16 Jun 2023, 03:56

Type Values Removed Values Added
References (MISC) https://github.com/emqx/nanomq/issues/1181 - (MISC) https://github.com/emqx/nanomq/issues/1181 - Exploit, Issue Tracking, Patch, Vendor Advisory
First Time Emqx
Emqx nanomq
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.8
CWE CWE-787
CPE cpe:2.3:a:emqx:nanomq:0.17.5:*:*:*:*:*:*:*

12 Jun 2023, 14:15

Type Values Removed Values Added
New CVE
Information

Published : 2023-06-12 14:15

Updated : 2025-07-15 20:15

NVD link : CVE-2023-34488

Mitre link : CVE-2023-34488

JSON object : View

Products Affected

emqx

  • nanomq
CWE
CWE-787

Out-of-bounds Write