high8.1
CVE-2026-11728
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.…
Impact
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
| Product | Affected versions |
|---|---|
| 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 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 |
Versions were read from the advisory text. No structured product data has been published for this record yet.