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Vulnerability record · CVE-2024-0409 · published 18 January 2024

CVE-2024-0409: Tigervnc out-of-bounds write vulnerability

Tigervnc · Tigervnc

A flaw was found in the X.Org server. The cursor code in both Xephyr and Xwayland uses the wrong type of private at creation. It uses the cursor bits type with the cursor as private, and when initiating the cursor, that overwrites the XSELINUX context.

7.8 CVSS 3.1 High EPSS 0.36% · top 73.2% CWE-787 · Out-of-bounds write
7.8CVSS 3.1 base score
0.36%EPSS exploitation probability, 30 days
NoNot in CISA KEV
12Affected product versions listed by NVD
20References
17 Jun 2026Last modified by NVD

Description

A flaw was found in the X.Org server. The cursor code in both Xephyr and Xwayland uses the wrong type of private at creation. It uses the cursor bits type with the cursor as private, and when initiating the cursor, that overwrites the XSELINUX context.

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

Affected products

12 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://access.redhat.com/errata/RHSA-2024:0320 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:2169
https://access.redhat.com/errata/RHSA-2024:2170
https://access.redhat.com/errata/RHSA-2024:2995
https://access.redhat.com/errata/RHSA-2024:2996
https://access.redhat.com/security/cve/CVE-2024-0409 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2257690 Issue TrackingThird Party Advisory
https://access.redhat.com/errata/RHSA-2024:0320 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:2169
https://access.redhat.com/errata/RHSA-2024:2170
https://access.redhat.com/errata/RHSA-2024:2995
https://access.redhat.com/errata/RHSA-2024:2996
https://access.redhat.com/security/cve/CVE-2024-0409 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2257690 Issue TrackingThird Party Advisory
https://lists.debian.org/debian-lts-announce/2024/01/msg00016.html
https://lists.fedoraproject.org/archives/list/[email protected]/message/5J4H7CH565ALSZZYKOJFYDA5K
https://lists.fedoraproject.org/archives/list/[email protected]/message/EJBMCWQ54R6ZL3MYU2D2JBW6J
https://lists.fedoraproject.org/archives/list/[email protected]/message/IZ75X54CN4IFYMIV7OK3JVZ57
https://security.gentoo.org/glsa/202401-30
https://security.netapp.com/advisory/ntap-20240307-0006/

Track CVE-2024-0409 inside VULONE

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Source: NIST National Vulnerability Database (record CVE-2024-0409), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.