What is CVE-2023-26286?

CVE-2023-26286 is a high-severity vulnerability in IBM Aix. CVSS score: 8.4/10. Published 2023-04-26.

How severe is CVE-2023-26286?

High severity. CVSS v3 base score is 8.4 out of 10.

Is CVE-2023-26286 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in IBM Aix

CVE-2023-26286

IBM AIX 7.1, 7.2, 7.3, and VIOS 3.1 could allow a non-privileged local user to exploit a vulnerability in the AIX runtime services library to execute arbitrary commands. IBM X-Force ID: 248421.

Published 2023-04-26 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.003 (20.2th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 20th percentile — 20.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

IBM Aix — versions 7.2, 7.3, 7.1
IBM Vios — versions 3.1

Public proof-of-concept exploits

ARPSyndicate/cve-scores

References

www.ibm.com/support/pages/node/6983236 (vendor-advisory)
exchange.xforce.ibmcloud.com/vulnerabilities/248421 (VDB Entry, vdb-entry)
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2023-26286?: CVE-2023-26286 is a high-severity vulnerability in IBM Aix. CVSS score: 8.4/10. Published 2023-04-26.
How severe is CVE-2023-26286?: High severity. CVSS v3 base score is 8.4 out of 10.
Is CVE-2023-26286 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.