IBM WebSphere MQ 8.0 through 9.1 is vulnerable to a error with MQTT topic string publishing that can cause a denial of service attack. IBM X-Force ID: 145456.
Severity
CVSS 3.0
6.5 medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS
1.3% chance of exploitation in the next 30 days; higher than 70% of CVEs (scores of 2026-10-31)