What is CVE-2026-94282?

CVE-2026-94282 is a medium-severity vulnerability in X.org Libxi, classified under Out-of-bounds Read. CVSS score: 5.6/10. Published 2026-09-28.

How severe is CVE-2026-94282?

Medium severity. CVSS v3 base score is 5.6 out of 10.

Out-of-bounds Read in X.org Libxi

CVE-2026-94282

An out-of-bounds read in libXi's XI2 enter/leave/focus cookie conversion in libXi before 1.8.4 could be used by malicious X server to crash an attached X client.

Vulnerability class: Buffer Overflow

Published 2026-09-28.

CVSS v3 metric

CVSS v3 base score 5.6 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:H.

EPSS exploit prediction

EPSS: 0.001 (2.2th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 2nd percentile — 2.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

The 30-day trend appears once there are two daily scores.

Affected products

X.org Libxi

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

gitlab.freedesktop.org/xorg/lib/libxi/-/merge_requests/23/diffs (patch)

Frequently asked questions

What is CVE-2026-94282?: CVE-2026-94282 is a medium-severity vulnerability in X.org Libxi, classified under Out-of-bounds Read. CVSS score: 5.6/10. Published 2026-09-28.
How severe is CVE-2026-94282?: Medium severity. CVSS v3 base score is 5.6 out of 10.