Priority MEDIUM 40
IBM MQ could allow an authenticated attacker to cause a denial of service or potentially execute arbitrary code due to a heap buffer overflow when processing MQPUT operations with malformed message options.
CVSS 3.1HIGH 8.8· Network · Low privileges · No interaction · EPSS 0.00447 · Published 2026-10-19 · Fixed in 3.4.0 CWE-122
Priority MEDIUM 40
IBM MQ could allow an authenticated attacker to cause a denial of service or potentially execute arbitrary code due to a heap buffer overflow when processing MQPUT or MQPUT1 operations with malformed message handle prope…
CVSS 3.1HIGH 8.8· Network · Low privileges · No interaction · EPSS 0.00437 · Published 2026-10-19 · Fixed in 3.4.0 CWE-122
Priority MEDIUM 40
IBM MQ could allow an authenticated attacker to cause a denial of service or corrupt memory due to improper validation of buffer sizes in MQOPEN operations.
CVSS 3.1HIGH 8.8· Network · Low privileges · No interaction · EPSS 0.00283 · Published 2026-10-19 · Fixed in 3.4.0 CWE-1223
Priority LOW 26
IBM MQ could allow a remote attacker with queue manager control or man-in-the-middle access on unencrypted channels to cause a denial of service in client applications using asynchronous message consumption due to improp…
CVSS 3.1MEDIUM 5.9· Network · No auth · No interaction · EPSS 0.00254 · Published 2026-10-19 · Fixed in 3.4.0 CWE-120
Priority LOW 28
IBM MQ could allow an authenticated attacker to cause a denial of service due to improper validation of offset values in MQOPEN requests.
CVSS 3.1MEDIUM 6.5· Network · Low privileges · No interaction · EPSS 0.0024 · Published 2026-10-19 · Fixed in 3.4.0 CWE-120
Priority LOW 24
IBM MQ could allow an authenticated attacker to cause a limited denial of service and obtain very limited information about process memory layout due to an out-of-bounds read when processing a specially crafted client re…
CVSS 3.1MEDIUM 5.4· Network · Low privileges · No interaction · EPSS 0.00201 · Published 2026-10-19 · Fixed in 3.4.0 CWE-122
Priority MEDIUM 40
IBM MQ Operator could allow an authenticated attacker to cause a denial of service or potentially execute arbitrary code due to unrestricted Java deserialization in the MQ Classes for Java.
CVSS 3.1HIGH 8.8· Network · Low privileges · No interaction · EPSS 0.00395 · Published 2026-10-19 · Fixed in 3.4.0 CWE-502
Priority LOW 28
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.
CVSS 3.1MEDIUM 6.5· Network · Low privileges · No interaction · EPSS 0.00259 · Published 2026-10-19 · Fixed in 3.4.0 CWE-502
Priority LOW 28
IBM MQ could allow an authenticated attacker to cause a denial of service due to improper validation of RFH2 message header fields in queued publish/subscribe operations.
CVSS 3.1MEDIUM 6.5· Network · Low privileges · No interaction · EPSS 0.0024 · Published 2026-10-19 · Fixed in 3.4.0 CWE-400
Priority LOW 28
IBM MQ could allow an authenticated attacker to cause a denial of service by sending a specially crafted asynchronous consume request that crashes the queue manager agent process.
CVSS 3.1MEDIUM 6.5· Network · Low privileges · No interaction · EPSS 0.00259 · Published 2026-10-19 · Fixed in 3.4.0 CWE-502
Priority LOW 13
IBM MQ Web Console could allow an authenticated administrator to write files outside the intended directory due to improper path validation.
CVSS 3.1LOW 2.7· Network · High privileges · No interaction · EPSS 0.0024 · Published 2026-10-19 · Fixed in 3.4.0 CWE-22
Priority MEDIUM 43
IBM MQ could allow a remote attacker to execute arbitrary code due to a stack buffer overflow when processing TLS certificates with malformed distinguished names during channel connection establishment.
CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.00315 · Published 2026-10-19 · Fixed in 3.4.0 CWE-121
Priority LOW 19
IBM MQ could allow an authenticated attacker to trigger a minor out-of-bounds read when sending malformed compressed data, though the data is not disclosed and the request is rejected.
CVSS 3.1MEDIUM 4.3· Network · Low privileges · No interaction · EPSS 0.00157 · Published 2026-10-19 · Fixed in 3.4.0 CWE-125
Priority LOW 19
IBM MQ could allow an authenticated attacker to cause potential process instability due to an off-by-one buffer overflow when processing specially crafted object names.
CVSS 3.1MEDIUM 4.3· Network · Low privileges · No interaction · EPSS 0.0022 · Published 2026-10-19 · Fixed in 3.4.0 CWE-193
Priority LOW 28
IBM MQ could allow an authenticated attacker to cause a denial of service through a specially crafted message that triggers excessive memory operations during character set conversion.
CVSS 3.1MEDIUM 6.5· Network · Low privileges · No interaction · EPSS 0.00211 · Published 2026-10-19 · Fixed in 3.4.0 CWE-681