CVE-2026-46411CWE-248

FlashMQ: Client can trigger uncaught exception on FlashMQ 1.26.1 and older

Medium · published June 9, 2026

CVSS v3.1
6.5
EPSS
1%
Percentile
44.0
In the wild
Unconfirmed
What it is

FlashMQ is a MQTT broker/server, designed for multi-CPU environments. Prior to version 1.26.2, authorized clients have the ability to exceed the permitted over-commit of their write buffer and triggering an internal safe-guard exception. This exception was in a path that was not catchable, and therefore causes a server abort. This issue has been patched in version 1.26.2.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00530 · 44.0th percentile
Weakness
CWE-248 · Uncaught Exception
Published
2026-06-09T23:01Z
EPSS history
Timeline
  • 09 JUN 23:01Z
    FlashMQ: Client can trigger uncaught exception on FlashMQ 1.26.1 and older
    cvelistv5