CVE-2026-109089
libXi XGetDeviceControl Control Type Mismatch Heap Buffer Overflow
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
A buffer overflow when handling DEVICE_RESOLUTION in libXi before 1.8.4 could overflow a heap, triggered by a malicious X server.
| CWE | CWE-122 |
| Vendor | x.org |
| Product | libxi |
| Published | Oct 27, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
X.Org / libXi
0 < 1.8.4
References
Credits
Adam Bedard