What’s Vulnerable › Vulnerabilities
CVE-2026-11728: IBM MQ .NET client is vulnerable to remote code execution
- Severity: high (CVSS 8.1 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-09-15 · updated 2026-09-16
- Weakness: CWE-787
Description
IBM MQ 9.1.0.0 through 9.1.0.37 LTS, 9.2.0.0 through 9.2.0.43 LTS, 9.3.0.0 through 9.3.0.41 LTS, 9.3.0.0 through 9.3.5.1 CD, 9.4.0.0 through 9.4.0.25 LTS, 9.4.0.0 through 9.4.5.1 CD, and 10.0.0.0 could allow a remote attacker to cause a denial of service or potentially execute arbitrary code in the client due to a heap buffer overflow when receiving messages from a malicious queue manager or through a man-in-the-middle attack.
Affected products
- IBM MQ: from 9.1.0.0 through 9.1.0.37 LTS; from 9.2.0.0 through 9.2.0.43 LTS; from 9.3.0.0 through 9.3.0.41 LTS; from 9.3.0.0 through 9.3.5.1 CD; from 9.4.0.0 through 9.4.0.25 LTS; from 9.4.0.0 through 9.4.5.1 CD
References
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