Vulnerability in IBM I Access Client Solutions
CVE-2026-7770
IBM i Access Family 1.1.5.0 through 1.1.9.12 IBM i Access Client Solutions (ACS) is vulnerable to remote code execution when configured to listen for requests from IBM i Navigator.
EPSS: 0.004 (37.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Ibm I_access_client_solutions
- Ibm I Access Family — versions 1.1.5.0
Weakness classification (CWE)
References
- psirt@us.ibm.com (vendor-advisory, patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-7770?
- CVE-2026-7770 is a high-severity vulnerability in IBM I Access Client Solutions, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 8.8/10. Published 2026-06-01.
- How severe is CVE-2026-7770?
- High severity. CVSS v3 base score is 8.8 out of 10.