CVE-2025-36128CWE-772

CVE-2025-36128

High · published October 16, 2025

CVSS v3.1
7.5
EPSS
1%
Percentile
44.8
In the wild
Unconfirmed
What it is

⚡ A crafty slowloris-style attack can bring your IBM MQ to its knees! Think of IBM MQ like a busy restaurant where each table has a time limit for ordering. If a diner keeps stalling their order, it can tie up the table, preventing others from being seated. Similarly, this vulnerability allows a remote attacker to hold up server resources indefinitely, leading to a denial of service. By exploiting this vulnerability, an attacker could cause service interruptions that leave your applications in the lurch, impacting data processing and communication. This could mean delayed transactions, lost messages, and a frustrated user base—all the ingredients for a recipe that could derail business operations!

Put simply

Think of IBM MQ like a busy restaurant where each table has a time limit for ordering. If a diner keeps stalling their order, it can tie up the table, preventing others from being seated. Similarly, this vulnerability allows a remote attacker to hold up server resources indefinitely, leading to a denial of service. This vulnerability arises from improper enforcement of timeouts on individual read operations, allowing attackers to send data slowly and exhaust server resources, effectively performing a denial of service.

What to do

By exploiting this vulnerability, an attacker could cause service interruptions that leave your applications in the lurch, impacting data processing and communication. This could mean delayed transactions, lost messages, and a frustrated user base—all the ingredients for a recipe that could derail business operations! To mitigate this risk, update your IBM MQ to the latest versions (9.3.0.0, 9.4.0.0, or newer) and ensure all timeout settings are enforced correctly. Regularly review your security configurations and consider implementing rate limiting to prevent similar attacks. This is fixable! Follow these steps, and you'll keep your systems running smoothly. 🛡️

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00543 · 44.8th percentile
Weakness
CWE-772 · Missing Release of Resource after Effective Lifetime
Published
2025-10-16T21:15Z
Affected products (6)
ProductVersionsFixed in
ibm/mqall versions—
ibm/mqall versions—
ibm/mqall versions—
ibm/mqall versions—
ibm/mqall versions—
ibm/mqall versions—
References (1)
EPSS history
Timeline
  • 16 OCT 16:49Z
    IBM MQ denial of service
    cvelistv5