CVE-2020-4310
IBM MQ and MQ Appliance 7.1, 7.5, 8.0, 9.0 LTS, 9.1 LTS, and 9.1 C are vulnerable to a denial of service attack due to an error within the Data Conversion logic.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.56%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
IBM MQ and MQ Appliance 7.1, 7.5, 8.0, 9.0 LTS, 9.1 LTS, and 9.1 C are vulnerable to a denial of service attack due to an error within the Data Conversion logic. IBM X-Force ID: 177081.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.56% probability · 75th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Affected
- ibm/mq · ibm/websphere mq
- Source
- psirt@us.ibm.com
EPSS 1.6% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://exchange.xforce.ibmcloud.com/vulnerabilities/177081VDB Entry, Vendor Advisory
- https://www.ibm.com/support/pages/node/6223914Vendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/177081VDB Entry, Vendor Advisory
- https://www.ibm.com/support/pages/node/6223914Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.