CVE-2026-12350
IBM MQ Deserialization of Untrusted Data
02 Description
IBM MQ Deserialization of Untrusted Data
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.25% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 17.4% of scored records. A rank, not a probability.
- NVD base score
- 6.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Analyzed. NVD last modified this record on 2026-10-23.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-10-19 16:40Z9 DAYS AGO
- Last updated
- 2026-10-19 16:58Z9 DAYS AGO
- Reserved
- 2026-06-15
- Assigning CNA
- ibm
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 6.5)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-502Deserialization of Untrusted DataBase
- Data version
- 5.2
- Document digest
- 71fc32e1c6c3a506d008003f0b9990bc42a7f3236f06dbe5bd1e797fbf89e907
05 Affected products
06 References
07 Remediation
Issues mentioned by this security bulletin are addressed in - IBM MQ Operator v4.1.0 CD release that included IBM supplied MQ Advanced 10.0.1.0-r1 container image. IBM MQ Operator v4.0.5 SC2 release that included IBM supplied MQ Advanced 10.0.0.5-r2 container image. IBM MQ Operator v3.2.30 SC2 release that included IBM supplied MQ Advanced 9.4.0.26-r2 container image. IBM MQ Container 10.0.1.0-r1 and 10.0.0.5-r2 release. IBM strongly recommends applying the latest container images. IBM MQ Operator v4.1.0 CD release details: Image Fix Version Registry Image Location ibm-mq-operator v4.1.0 icr.io icr.io/cpopen/ibm-mq-operator@sha256:ed9a217869637c8749270fd485517ea62c8dffbd198a8f7090042ebbeb5bd127 ibm-mqadvanced-server 10.0.1.0-r1 cp.icr.io cp.icr.io/cp/ibm-mqadvanced-server@sha256:06f0892b36e879d0f8957477deeabfe2b4e0fda13f64792edbe7825caf7b77e3 ibm-mqadvanced-server-dev 10.0.1.0-r1 icr.io icr.io/ibm-messaging/ibm-mqadvanced-server-dev@sha256:129d1d736e94bae071039136585734b7ccc6cfd6e1cc7dacb9af59e60d0a57c2 IBM MQ Operator v4.0.5 SC2 release details: Image Fix Version Registry Image Location ibm-mq-operator v4.0.5 icr.io icr.io/cpopen/ibm-mq-operator@sha256:1109597707dfb3fbde274e39698f08a9011f13ca75746a30414e246459571930 ibm-mqadvanced-server 10.0.0.5-r2 cp.icr.io cp.icr.io/cp/ibm-mqadvanced-server@sha256:0218cf9da8c763b502afb02e7c0406654ac64fdd015410d7b73496fbed89a652 ibm-mqadvanced-server-dev 10.0.0.5-r2 icr.io