6.5
Medium
CVE-2026-12155 IBM MQ could allow an authenticated attacker to cause a denial of service by sending specially crafted multicast…
Description
IBM MQ could allow an authenticated attacker to cause a denial of service by sending specially crafted multicast status messages that trigger a NULL pointer dereference.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| MQ Operator 4.0 | 4.0.0 → 4.0.4 | No fix stated |
| MQ Operator 3.9 | 3.9.0 → 3.9.2 | No fix stated |
| MQ Operator 3.8 | 3.8.0 → 3.8.1 | No fix stated |
| MQ Operator 3.7 | 3.7.0 → 3.7.2 | No fix stated |
| MQ Operator 3.6 | 3.6.0 → 3.6.4 | No fix stated |
| MQ Operator 3.5 | 3.5.0 → 3.5.3 | No fix stated |
| MQ Operator | 3.4.1 | No fix stated |
| MQ Operator 3.3 | 3.3.0 → < 3.4.0 | 3.4.0 |
| MQ Operator 3.2 | 3.2.0 → 3.2.29 | No fix stated |
Show the 4 other branches Hide the 4 other branches
| Product | Affected versions | Fixed in |
|---|---|---|
| MQ Operator 2.0 | 2.0.0 → 2.0.29 | No fix stated |
| MQ Advanced container images 10.0 | 10.0.0.0-r1 → 10.0.0.5-r1 | No fix stated |
| MQ Advanced container images 9.4 | 9.4.0.0-r1 → latest | No fix stated |
| MQ Advanced container images 9.3 | 9.3.0.0-r1 → 9.3.0.25-r1 | No fix stated |
Other CVEs of MQ Operator
The 27 CVEs of MQ Operator →
CVE-2026-10572
IBM MQ could allow an authenticated attacker to cause a denial of service or potentially execute arbitrary code due to a…
8.8
High
CVE-2026-10574
IBM MQ could allow an authenticated attacker to cause a denial of service or potentially execute arbitrary code due to a…
8.8
High
CVE-2026-10743
IBM MQ could allow an authenticated attacker to cause a denial of service or corrupt memory due to improper validation…
8.8
High
CVE-2026-11828
IBM MQ could allow a remote attacker with queue manager control or man-in-the-middle access on unencrypted channels to…
5.9
Medium