What is CVE-2023-42019?

CVE-2023-42019 is a medium-severity vulnerability in IBM Aix, classified under Missing Encryption of Sensitive Data. CVSS score: 5.9/10. Published 2023-12-01.

How severe is CVE-2023-42019?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Vulnerability in IBM Aix

CVE-2023-42019

IBM InfoSphere Information Server 11.7 could allow a remote attacker to cause a denial of service due to improper input validation. IBM X-Force ID: 265161.

Published 2023-12-01 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.005 (41.8th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 41.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

IBM Aix
IBM Infosphere Information Server — versions 11.7
IBM Infosphere Information Server
Linux Kernel
Microsoft Windows

Weakness classification (CWE)

CWE-311 — Missing Encryption of Sensitive Data

References

www.ibm.com/support/pages/node/7067719 (vendor-advisory, Patch, Vendor Advisory)
exchange.xforce.ibmcloud.com/vulnerabilities/265569 (VDB Entry, vdb-entry, Vendor Advisory)

Frequently asked questions

What is CVE-2023-42019?: CVE-2023-42019 is a medium-severity vulnerability in IBM Aix, classified under Missing Encryption of Sensitive Data. CVSS score: 5.9/10. Published 2023-12-01.
How severe is CVE-2023-42019?: Medium severity. CVSS v3 base score is 5.9 out of 10.