CVE-2022-46340

HighCVSS 8.8/10Last modified Jun 17, 2026

Description

A vulnerability was found in X.Org. This security flaw occurs becuase the swap handler for the XTestFakeInput request of the XTest extension may corrupt the stack if GenericEvents with lengths larger than 32 bytes are sent through a the XTestFakeInput request. This issue can lead to local privileges elevation on systems where the X server is running privileged and remote code execution for ssh X forwarding sessions. This issue does not affect systems where client and server use the same byte order.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-787

Affected software

VendorProductVersions
n/axorg-x11-serverxorg-x11-server-1.20.4

References

Timeline

Published
Dec 14, 2022
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2022

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CVE-2022-46340: High severity, CVSS 8.8 | Vulnix