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CVE-2026-109090

HighCVSS 7.5/10Last modified Nov 4, 2026

Description

A malicious X server could cause a heap overflow by injecting a large DEVICE_ENABLE reply when processed by libXi before 1.8.4.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

Vendor	Product	Versions
x.org	libXi	< 1.8.4

References

https://gitlab.freedesktop.org/xorg/lib/libxi/-/commit/4eb9f70b6

Timeline

Published: Oct 27, 2026
Last modified: Nov 4, 2026
NVD status: Awaiting Analysis

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CVE-2026-109090: High severity, CVSS 7.5 | Vulnix