CVE-2019-4052
IBM API Connect 2018.1 and 2018.4.1.2 apis can be leveraged by unauthenticated users to discover login ids of registered users.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.91%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
IBM API Connect 2018.1 and 2018.4.1.2 apis can be leveraged by unauthenticated users to discover login ids of registered users. IBM X-Force ID: 156544.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 1.91% probability · 80th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Affected
- ibm/api connect
- Source
- psirt@us.ibm.com
EPSS 1.9% 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
- http://www.ibm.com/support/docview.wss?uid=ibm10874248Patch, Vendor Advisory
- http://www.securityfocus.com/bid/107559Third Party Advisory, VDB Entry
- https://exchange.xforce.ibmcloud.com/vulnerabilities/156544Broken Link, VDB Entry, Vendor Advisory
- http://www.ibm.com/support/docview.wss?uid=ibm10874248Patch, Vendor Advisory
- http://www.securityfocus.com/bid/107559Third Party Advisory, VDB Entry
- https://exchange.xforce.ibmcloud.com/vulnerabilities/156544Broken Link, VDB Entry, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.