CVE-2026-93544
Received Received - Intake

Out-of-Bounds Read in libXi XI2 XIQueryDevice Parsing

Publication date: 2026-09-24

Last updated on: 2026-09-24

Assigner: SUSE

Description
An out-of-bounds read in libXi's XI2 XIQueryDevice reply parsing in libXi before 1.8.4 can be used by a malicious X server to crash an attached X client.

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Meta Information

Published
2026-09-24
Last Modified
2026-09-24
Generated
2026-09-24
AI Q&A
2026-09-24
EPSS Evaluated
N/A
NVD
CVE-2026-93544
EUVD
EUVD-2026-86275

Affected Vendors & Products

Currently, no data is known.

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-125 The product reads data past the end, or before the beginning, of the intended buffer.

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Executive Summary

This vulnerability is an out-of-bounds read in libXi's XI2 XIQueryDevice reply parsing. It exists in libXi versions before 1.8.4. A malicious X server can exploit this to crash an attached X client by sending specially crafted data.

Impact Analysis

If you use an X client connected to an untrusted X server, this vulnerability could cause your client application to crash. This may lead to denial of service or unexpected behavior in applications relying on libXi.

Mitigation Strategies

Update libXi to version 1.8.4 or later to address the out-of-bounds read vulnerability in XI2 XIQueryDevice reply parsing.

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