Privilege escalation in Ibm I

CVE-2026-18101

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a local attacker to gain elevated privileges due to improper management of thread authority swaps.

Vulnerability class: Privilege Escalation

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/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-2026-18101?
CVE-2026-18101 is a high-severity vulnerability in Ibm I, classified under Improper Privilege Management. CVSS score: 8.8/10. Published 2026-08-13.
How severe is CVE-2026-18101?
High severity. CVSS v3 base score is 8.8 out of 10.