Buffer overflow in Ibm I

CVE-2026-17083

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

Vulnerability class: Buffer Overflow

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/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-2026-17083?
CVE-2026-17083 is a critical-severity vulnerability in Ibm I, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2026-08-12.
How severe is CVE-2026-17083?
Critical severity. CVSS v3 base score is 9.8 out of 10.