High severity · published Oct 16, 2025
CVE-2025-36128
IBM MQ 9.1, 9.2, 9.3, 9.4 LTS and 9.3, 9.4 CD is vulnerable to a denial of service, caused by improper enforcement of the timeout on individual read operations
7.5
CVSS
0.5%
EPSS
No
On KEV
Description
IBM MQ 9.1, 9.2, 9.3, 9.4 LTS and 9.3, 9.4 CD is vulnerable to a denial of service, caused by improper enforcement of the timeout on individual read operations. By conducting slowloris-type attacks, a remote attacker could exploit this vulnerability to cause a denial of service.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 45% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MQ
MQ · Ibm
9.1.0.0; 9.2.0.0; 9.3.0; 9.3.0.0; 9.4.0; 9.4.0.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-36128
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-36128
Vendor Advisory
https://www.ibm.com/support/pages/node/7244480
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