CVEsX.OrgCVE-2026-109089Published Oct 27, 16:05 · Updated Oct 27, 16:05 UTC
7.5
HighCVSS 3.1 · from suse
CVE-2026-109089

libXi XGetDeviceControl Control Type Mismatch Heap Buffer Overflow

libXi · Heap buffer overflow · CWE-122
AffectedlibXi
FixUpdate to 1.8.4 or newer
PublishedOct 27, 16:05 · suse
ScoredOct 27 · 7.5 · suse
Exploit code publicNone known · checked 21:18 UTC
ExploitedNone known · CISA KEV checked 22:07 UTC

What we know

No known exploitation. CISA KEV, checked 22:07 UTC.
No public exploit code known. Exploit-DB, Metasploit, Nuclei, checked 21:18 UTC.
An attacker only needs network access to the target. No login needed. CVSS: network, no privileges.
It only works under certain conditions, which makes it harder to pull off. CVSS: high attack complexity.
Someone has to open, click or run something first. CVSS: user interaction required.
A successful attack can read and change data and take the service down. CVSS: high impact on confidentiality, integrity and availability.

Description

A buffer overflow when handling DEVICE_RESOLUTION in libXi before 1.8.4 could overflow a heap, triggered by a malicious X server.

From suse

Affected and fixed versions

ProductAffectedFixed inlibXibefore 1.8.41.8.4

Exploit code

Exploit-DBnone knownMetasploitnone knownNucleinone known

References

gitlab.freedesktop.org/xorg/lib/libxi/-/commit/f7836d0a0 · gitlab.freedesktop.orgpatch

Other CVEs in libXi

All 8 →
7.5libXi XGetDeviceControl DEVICE_ENABLE Heap Buffer Overflow · CVE-2026-109090Oct 275.6Out-of-bounds read in libXi's XI2 enter/leave/focus cookie conversion · CVE-2026-94282Sep 286.5Out-of-bounds read in libXi's XListInputDevices() class parsing · CVE-2026-94281Sep 24