Out-of-bounds Read in Ibm I

CVE-2026-16863

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to obtain sensitive information due to an out-of-bounds read.

Vulnerability class: Buffer Overflow

CVSS v3 metric

CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N.

Affected products

Ibm I — versions 7.6, 7.5, 7.4

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

psirt@us.ibm.com (vendor-advisory, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2026-16863?: CVE-2026-16863 is a high-severity vulnerability in Ibm I, classified under Out-of-bounds Read. CVSS score: 7.7/10. Published 2026-08-12.
How severe is CVE-2026-16863?: High severity. CVSS v3 base score is 7.7 out of 10.