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CVE-2026-13433: IBM i Access Client Solutions (ACS) is Affected By Multiple Vulnerabilities
- Severity: critical (CVSS 9.6 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-08-12 · updated 2026-10-23
- Weakness: CWE-494
Description
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
How to fix
Upgrade to a fixed version: IBM i Access Client Solutions 1.1.9.14. Check the vendor advisory for mitigations.
References
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