CVE-2025-3631 json
IBM MQ denial of service
published 2025-07-11 15 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-21175
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 31%
- public exploits
- 0
- none known
Summary
An IBM MQ 9.3 and 9.4 Client connecting to an MQ Queue Manager can cause a SIGSEGV in the AMQRMPPA channel process terminating it.
Patch / fix
- ibm mq_appliance 9.4.0.12, 9.4.3, 9.4.3.0
- ibm.com/support/pages/node/7238310 advisory
- ibm.com/support/pages/node/7237025 advisory
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 15 mo ago
Exploit prediction
0.38% chance of exploitation in the next 30 days, higher than 31% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected products
- IBM MQ
- IBM MQ Appliance
Classification
- Weakness
-
- CWE-416 Use After Free
References
-
ibm.com
/support/pages/node/7238310
vendor-advisory, patch
-
ibm.com
/support/pages/node/7237025
vendor-advisory, patch
Sources
- CVE List CVE-2025-3631
- NVD CVE-2025-3631
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.