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CVE PROGRAM SOURCE RECORD8.1 High

CVE-2026-11728

IBM MQ .NET client is vulnerable to remote code execution

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

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

IBM MQ

  • 9.1.0.0 to ≤ 9.1.0.37 LTSaffected
  • 9.2.0.0 to ≤ 9.2.0.43 LTSaffected
  • 9.3.0.0 to ≤ 9.3.0.41 LTSaffected
  • 9.3.0.0 to ≤ 9.3.5.1 CDaffected
  • 9.4.0.0 to ≤ 9.4.0.25 LTSaffected
  • 9.4.0.0 to ≤ 9.4.5.1 CDaffected
  • 10.0.0.0affected

References