CVE-2026-13433: IBM I Access Client Solutions

Critical severity, CVSS 9.6. EPSS: 0.2% chance of exploitation in the next 30 days.

IBM i Access Client Solutions 1.1.2.0 through 1.1.9.13 (ACS) is vulnerable to downloading unverified product code when configured to update from an IBM i. A bad actor could use this vulnerablity to run compromised code on the ACS user's workstation.

Affected products

• IBM I Access Client Solutions: from 1.1.2, before 1.1.9.14 (fixed in 1.1.9.14)

Published 2026-08-12. Last modified 2026-08-18.