What is CVE-2026-7770?

CVE-2026-7770 is a high-severity vulnerability in Ibm I Access Family, 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.

Vulnerability in Ibm I Access Family

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: 0.002 (45.9th 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 Family — versions 1.1.5.0

Weakness classification (CWE)

CWE-74 — Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection)

References

psirt@us.ibm.com (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-7770?: CVE-2026-7770 is a high-severity vulnerability in Ibm I Access Family, 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.