AUGUST 4, 2026
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Case File

CVE-2023-28366

HIGH · CVSS 7.5 EPSS 1.12% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2023-09-01 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links
github.com ↗ github.com ↗

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2023-28366
Severity
HIGH
CVSS
7.5
EPSS
1.12%

Original NVD Description

The broker in Eclipse Mosquitto 1.3.2 through 2.x before 2.0.16 has a memory leak that can be abused remotely when a client sends many QoS 2 messages with duplicate message IDs, and fails to respond to PUBREC commands. This occurs because of mishandling of EAGAIN from the libc send function.