CVE-2026-12670

EUVD-2026-104462
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
ibmCNA
5.3 MEDIUM
NETWORK
HIGH
LOW
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 9.12%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
ibmmq_operator
3.2.0 ≤
𝑥
≤ 3.2.29
CNA
ibmmq_operator
3.3.0 ≤
𝑥
< 3.4.0
CNA
ibmmq_operator
3.4.1
CNA
ibmmq_operator
3.5.0
CNA
ibmmq_operator
3.5.1 ≤
𝑥
≤ 3.5.3
CNA
ibmmq_operator
3.6.0 ≤
𝑥
≤ 3.6.4
CNA
ibmmq_operator
3.7.0 ≤
𝑥
≤ 3.7.2
CNA
ibmmq_operator
3.8.0
CNA
ibmmq_operator
3.8.1
CNA
ibmmq_operator
3.9.0
CNA
ibmmq_operator
3.9.1
CNA
ibmmq_operator
3.9.2
CNA
ibmmq_operator
4.0.0
CNA
ibmmq_operator
4.0.1
CNA
ibmmq_operator
4.0.2
CNA
ibmmq_operator
4.0.3
CNA
ibmmq_operator
4.0.4
CNA
ibmmq_operator
2.0.0 ≤
𝑥
≤ 2.0.29
CNA