Buffer overflow in Ibm I

CVE-2026-17223

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to execute arbitrary code due to a buffer overflow.

Vulnerability class: Buffer Overflow

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

  • Ibm I — versions 7.6, 7.5, 7.4

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-17223?
CVE-2026-17223 is a high-severity vulnerability in Ibm I, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2026-08-13.
How severe is CVE-2026-17223?
High severity. CVSS v3 base score is 8.8 out of 10.