What is CVE-2026-9158?

CVE-2026-9158 is a critical-severity vulnerability in Eclipse 4diac_forte, classified under Use After Free. CVSS score: 9.8/10. Published 2026-06-18.

How severe is CVE-2026-9158?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Use After Free in Eclipse 4diac_forte

CVE-2026-9158

In Eclipse 4diac FORTE versions 3.0.0 to 3.1.0, a specially crafted DELETE connection command to the management interface can lead to a dangling pointer. This allows subsequent commands to access freed memory (use-after-free).

Vulnerability class: Use-After-Free

EPSS: 0.003 (22.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Eclipse 4diac_forte
Eclipse Foundation 4diac — versions 3.0.0

Weakness classification (CWE)

CWE-416 — Use After Free

References

emo@eclipse.org (Vendor Advisory)

Frequently asked questions

What is CVE-2026-9158?: CVE-2026-9158 is a critical-severity vulnerability in Eclipse 4diac_forte, classified under Use After Free. CVSS score: 9.8/10. Published 2026-06-18.
How severe is CVE-2026-9158?: Critical severity. CVSS v3 base score is 9.8 out of 10.