Medium severity · published Sep 28, 2026
CVE-2026-94282
Out-of-bounds read in libXi's XI2 enter/leave/focus cookie conversion
5.6
CVSS
0.1%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
Low
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 2% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LI
libXi · x.org
before 1.8.4 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-94282
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-94282
patch
https://gitlab.freedesktop.org/xorg/lib/libxi/-/merge_requests/23/diffs?commit_id=cecf160e9731fe01f3632f875f29ffcb598b052a
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