CVE-2026-17484: IBM i 7.3, 7.4, 7.5, and 7.6 could allow a local attacker to cause a denial of service due to improper access control
CVE-2026-17484 analysis covering impact, affected products, versions, remediation, and cross-checked defender guidance.
CVE-2026-17484 is a vulnerability published by NVD on 10/13/2026.
What happened
IBM i 7.3, 7.4, 7.5, and 7.6 could allow a local attacker to cause a denial of service due to improper access control.
Affected products and versions
- ibm i unspecified version (from 7.3 through 7.6)
Severity and weakness
CVSS: MEDIUM 5.3. Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
Weaknesses: CWE-200.
Known exploitation
No CISA KEV entry is currently attached to the NVD record.
What defenders should do
- Identify whether the affected product and version range exists in production.
- Review vendor advisories and release notes before change windows.
- Patch, upgrade, disable the vulnerable component, or apply vendor mitigations.
- Verify the running version after deployment, not only the package inventory.