Back
CVE-2020-4931
IBM MQ 9.1 LTS, 9.2 LTS, and 9.1 CD AMQP Channels could allow an authenticated user to cause a denial of service due to an issue…
Medium6.5EPSS 1.2%
- Published
- Updated
- Reserved
- Assigned by
- ibm
Description
IBM MQ 9.1 LTS, 9.2 LTS, and 9.1 CD AMQP Channels could allow an authenticated user to cause a denial of service due to an issue processing messages. IBM X-Force ID: 191747.
Timeline
ID reserved
By ibm
- 14 months later
· 14 months later
Published
- 4 years later
· 4 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| ibmCNA (assigner) | 3.0 | Medium6.5 | CVSS:3.0/AV:N/S:U/UI:N/A:H/C:N/PR:L/I:N/AC:L/RL:O/RC:C/E:U |
| NVDNVD · Modified | 3.1 | Medium6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 1.2% · top 31% of all CVEs (7 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.5.
Weakness
- Denial of Service
Affected products
- affected 9.1.0.0
- affected 9.1.0.1
- affected 9.1.1
- affected 9.1.0.2
- affected 9.1.2
- affected 9.1.0.3
- affected 9.1.3
- affected 9.1.0.4
- affected 9.1.4
- affected 9.1.0.5
- affected 9.1.5
- affected 9.1.0.6
- affected 9.2.0.0
- affected 9.2.0.1
References (2)
- https://www.ibm.com/support/pages/node/6403295 (opens in a new tab)x_refsource_CONFIRMx_transferred
- ibm-mq-cve20204931-dos (191747) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2020-4931)Record last updated .