Is CVE-2024-0409 in the CISA KEV catalog?

No. CVE-2024-0409 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2024-0409?

CVE-2024-0409 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2024-0409?

CVE-2024-0409 has an EPSS score of 0.36% (28th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2024-0409?

Upgrade xorg-server on debian 11 to 2:1.20.11-1+deb11u11 or later. Fixes are available for 43 affected products.

CVE & CISA-KEV Catalog

CVE-2024-0409

HIGH

7.8

CVSS v3

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.

CWE-787Out-of-bounds Write

How to fix

Remediation Available

xorg-serverDebian

Fixed in:2:1.20.11-1+deb11u11CVE-2024-0409

Fixed in:2:21.1.7-3+deb12u5CVE-2024-0409

Fixed in:2:21.1.11-1CVE-2024-0409

xorg-x11-serverRed Hat / RHEL

Fixed in:0:1.20.4-27.el7_9RHSA-2024:0320

Fixed in:0:1.20.11-22.el8RHSA-2024:2995

Fixed in:0:1.20.11-24.el9RHSA-2024:2169

xorg-x11-serverRocky

Fixed in:0:1.20.4-27.el7_9RHSA-2024:0320

Fixed in:0:1.20.11-22.el8RHSA-2024:2995

Fixed in:0:1.20.11-24.el9RHSA-2024:2169

xorg-x11-server-XdmxRed Hat / RHEL

Fixed in:0:1.20.4-27.el7_9RHSA-2024:0320

Fixed in:0:1.20.4-27.el7_9.ppc64RHSA-2024:0320

Fixed in:0:1.20.4-27.el7_9RHSA-2024:0320

Fixed in:0:1.20.11-22.el8RHSA-2024:2995

Fixed in:0:1.20.11-24.el9RHSA-2024:2169

xorg-x11-server-XdmxRocky

Fixed in:0:1.20.4-27.el7_9.ppc64RHSA-2024:0320

Fixed in:0:1.20.4-27.el7_9RHSA-2024:0320

Fixed in:0:1.20.11-22.el8RHSA-2024:2995

Fixed in:0:1.20.11-24.el9RHSA-2024:2169

xorg-x11-server-Xdmx-debuginfoRed Hat / RHEL

Fixed in:0:1.20.11-22.el8RHSA-2024:2995

Fixed in:0:1.20.11-24.el9RHSA-2024:2169

xorg-x11-server-Xdmx-debuginfoRocky

Fixed in:0:1.20.11-22.el8RHSA-2024:2995

Fixed in:0:1.20.11-24.el9RHSA-2024:2169

xorg-x11-server-XephyrRed Hat / RHEL

Fixed in:0:1.20.4-27.el7_9RHSA-2024:0320

Fixed in:0:1.20.4-27.el7_9.ppc64RHSA-2024:0320

Fixed in:0:1.20.11-22.el8RHSA-2024:2995

Fixed in:0:1.20.11-24.el9RHSA-2024:2169

xorg-x11-server-XephyrRocky

Fixed in:0:1.20.4-27.el7_9RHSA-2024:0320

Fixed in:0:1.20.4-27.el7_9.ppc64RHSA-2024:0320

Fixed in:0:1.20.11-22.el8RHSA-2024:2995

Fixed in:0:1.20.11-24.el9RHSA-2024:2169

xorg-x11-server-Xephyr-debuginfoRocky

Fixed in:0:1.20.11-22.el8RHSA-2024:2995

Fixed in:0:1.20.11-24.el9RHSA-2024:2169

xorg-x11-server-Xephyr-debuginfoRed Hat / RHEL

Fixed in:0:1.20.11-22.el8RHSA-2024:2995

Fixed in:0:1.20.11-24.el9RHSA-2024:2169

xorg-x11-server-XnestRed Hat / RHEL

Fixed in:0:1.20.4-27.el7_9RHSA-2024:0320

Fixed in:0:1.20.4-27.el7_9.ppc64RHSA-2024:0320

Fixed in:0:1.20.4-27.el7_9RHSA-2024:0320

Fixed in:0:1.20.11-22.el8RHSA-2024:2995

Fixed in:0:1.20.11-24.el9RHSA-2024:2169

xorg-x11-server-XnestRocky

Fixed in:0:1.20.4-27.el7_9RHSA-2024:0320

Fixed in:0:1.20.4-27.el7_9.ppc64RHSA-2024:0320

Fixed in:0:1.20.11-22.el8RHSA-2024:2995

Fixed in:0:1.20.11-24.el9RHSA-2024:2169

xorg-x11-server-Xnest-debuginfoRocky

Fixed in:0:1.20.11-22.el8RHSA-2024:2995

Fixed in:0:1.20.11-24.el9RHSA-2024:2169

xorg-x11-server-Xnest-debuginfoRed Hat / RHEL

Fixed in:0:1.20.11-22.el8RHSA-2024:2995

Fixed in:0:1.20.11-24.el9RHSA-2024:2169

xorg-x11-server-XorgRed Hat / RHEL

Fixed in:0:1.20.4-27.el7_9RHSA-2024:0320

Fixed in:0:1.20.4-27.el7_9.ppc64RHSA-2024:0320

Fixed in:0:1.20.4-27.el7_9RHSA-2024:0320

Fixed in:0:1.20.11-22.el8RHSA-2024:2995

Fixed in:0:1.20.11-24.el9RHSA-2024:2169

xorg-x11-server-XorgRocky

Fixed in:0:1.20.4-27.el7_9RHSA-2024:0320

Fixed in:0:1.20.4-27.el7_9.ppc64RHSA-2024:0320

Fixed in:0:1.20.4-27.el7_9RHSA-2024:0320

Fixed in:0:1.20.11-22.el8RHSA-2024:2995

Fixed in:0:1.20.11-24.el9RHSA-2024:2169

xorg-x11-server-Xorg-debuginfoRocky

Fixed in:0:1.20.11-22.el8RHSA-2024:2995

Fixed in:0:1.20.11-24.el9RHSA-2024:2169

xorg-x11-server-Xorg-debuginfoRed Hat / RHEL

Fixed in:0:1.20.11-22.el8RHSA-2024:2995

Fixed in:0:1.20.11-24.el9RHSA-2024:2169

xorg-x11-server-XvfbRocky

Fixed in:0:1.20.4-27.el7_9.ppc64RHSA-2024:0320

Fixed in:0:1.20.4-27.el7_9RHSA-2024:0320

Fixed in:0:1.20.11-22.el8RHSA-2024:2995

Fixed in:0:1.20.11-24.el9RHSA-2024:2169

xorg-x11-server-XvfbRed Hat / RHEL

Fixed in:0:1.20.4-27.el7_9RHSA-2024:0320

Fixed in:0:1.20.4-27.el7_9.ppc64RHSA-2024:0320

Fixed in:0:1.20.4-27.el7_9RHSA-2024:0320

Fixed in:0:1.20.11-22.el8RHSA-2024:2995

Fixed in:0:1.20.11-24.el9RHSA-2024:2169

xorg-x11-server-Xvfb-debuginfoRocky

Fixed in:0:1.20.11-22.el8RHSA-2024:2995

Fixed in:0:1.20.11-24.el9RHSA-2024:2169

xorg-x11-server-Xvfb-debuginfoRed Hat / RHEL

Fixed in:0:1.20.11-22.el8RHSA-2024:2995

Fixed in:0:1.20.11-24.el9RHSA-2024:2169

xorg-x11-server-XwaylandRed Hat / RHEL

Fixed in:0:1.20.4-27.el7_9RHSA-2024:0320

Fixed in:0:1.20.4-27.el7_9.ppc64RHSA-2024:0320

Fixed in:0:1.20.4-27.el7_9RHSA-2024:0320

Fixed in:0:21.1.3-15.el8RHSA-2024:2996

Fixed in:0:22.1.9-5.el9RHSA-2024:2170

xorg-x11-server-XwaylandRocky

Fixed in:0:1.20.4-27.el7_9RHSA-2024:0320

Fixed in:0:1.20.4-27.el7_9.ppc64RHSA-2024:0320

Fixed in:0:1.20.4-27.el7_9RHSA-2024:0320

Fixed in:0:21.1.3-15.el8RHSA-2024:2996

Fixed in:0:22.1.9-5.el9RHSA-2024:2170

xorg-x11-server-Xwayland-debuginfoRocky

Fixed in:0:21.1.3-15.el8RHSA-2024:2996

Fixed in:0:22.1.9-5.el9RHSA-2024:2170

xorg-x11-server-Xwayland-debuginfoRed Hat / RHEL

Fixed in:0:21.1.3-15.el8RHSA-2024:2996

Fixed in:0:22.1.9-5.el9RHSA-2024:2170

xorg-x11-server-Xwayland-debugsourceRed Hat / RHEL

Fixed in:0:21.1.3-15.el8RHSA-2024:2996

Fixed in:0:22.1.9-5.el9RHSA-2024:2170

xorg-x11-server-Xwayland-debugsourceRocky

Fixed in:0:21.1.3-15.el8RHSA-2024:2996

Fixed in:0:22.1.9-5.el9RHSA-2024:2170

xorg-x11-server-commonRed Hat / RHEL

Fixed in:0:1.20.4-27.el7_9RHSA-2024:0320

Fixed in:0:1.20.4-27.el7_9.ppc64RHSA-2024:0320

Fixed in:0:1.20.4-27.el7_9RHSA-2024:0320

Fixed in:0:1.20.11-22.el8RHSA-2024:2995

Fixed in:0:1.20.11-24.el9RHSA-2024:2169

xorg-x11-server-commonRocky

Fixed in:0:1.20.4-27.el7_9RHSA-2024:0320

Fixed in:0:1.20.4-27.el7_9.ppc64RHSA-2024:0320

Fixed in:0:1.20.4-27.el7_9RHSA-2024:0320

Fixed in:0:1.20.11-22.el8RHSA-2024:2995

Fixed in:0:1.20.11-24.el9RHSA-2024:2169

xorg-x11-server-debuginfoRocky

Fixed in:0:1.20.4-27.el7_9RHSA-2024:0320

Fixed in:0:1.20.4-27.el7_9.ppc64RHSA-2024:0320

Fixed in:0:1.20.4-27.el7_9RHSA-2024:0320

Fixed in:0:1.20.4-27.el7_9.ppcRHSA-2024:0320

Fixed in:0:1.20.11-22.el8RHSA-2024:2995

Fixed in:0:1.20.11-24.el9RHSA-2024:2169

xorg-x11-server-debuginfoRed Hat / RHEL

Fixed in:0:1.20.4-27.el7_9.ppcRHSA-2024:0320

Fixed in:0:1.20.4-27.el7_9RHSA-2024:0320

Fixed in:0:1.20.4-27.el7_9.ppc64RHSA-2024:0320

Fixed in:0:1.20.4-27.el7_9RHSA-2024:0320

Fixed in:0:1.20.11-22.el8RHSA-2024:2995

Fixed in:0:1.20.11-24.el9RHSA-2024:2169

xorg-x11-server-debugsourceRocky

Fixed in:0:1.20.11-22.el8RHSA-2024:2995

Fixed in:0:1.20.11-24.el9RHSA-2024:2169

xorg-x11-server-debugsourceRed Hat / RHEL

Fixed in:0:1.20.11-22.el8RHSA-2024:2995

Fixed in:0:1.20.11-24.el9RHSA-2024:2169

xorg-x11-server-develRed Hat / RHEL

Fixed in:0:1.20.4-27.el7_9RHSA-2024:0320

Fixed in:0:1.20.4-27.el7_9.ppcRHSA-2024:0320

Fixed in:0:1.20.4-27.el7_9RHSA-2024:0320

Fixed in:0:1.20.4-27.el7_9.ppc64RHSA-2024:0320

Fixed in:0:1.20.4-27.el7_9RHSA-2024:0320

Fixed in:0:1.20.11-22.el8RHSA-2024:2995

Fixed in:0:1.20.11-24.el9RHSA-2024:2169

xorg-x11-server-develRocky

Fixed in:0:1.20.4-27.el7_9RHSA-2024:0320

Fixed in:0:1.20.4-27.el7_9.ppcRHSA-2024:0320

Fixed in:0:1.20.4-27.el7_9RHSA-2024:0320

Fixed in:0:1.20.4-27.el7_9.ppc64RHSA-2024:0320

Fixed in:0:1.20.11-22.el8RHSA-2024:2995

Fixed in:0:1.20.11-24.el9RHSA-2024:2169

xorg-x11-server-sourceRocky

Fixed in:0:1.20.4-27.el7_9RHSA-2024:0320

Fixed in:0:1.20.11-22.el8RHSA-2024:2995

Fixed in:0:1.20.11-24.el9RHSA-2024:2169

xorg-x11-server-sourceRed Hat / RHEL

Fixed in:0:1.20.4-27.el7_9RHSA-2024:0320

Fixed in:0:1.20.11-22.el8RHSA-2024:2995

Fixed in:0:1.20.11-24.el9RHSA-2024:2169

xorg-serverUbuntu

Fixed in:2:1.18.4-0ubuntu0.12+esm9USN-6587-2

Fixed in:2:1.19.6-1ubuntu4.15+esm4USN-6587-2

Fixed in:2:1.20.13-1ubuntu1~20.04.14USN-6587-1

Fixed in:2:21.1.4-2ubuntu1.7~22.04.7USN-6587-1

Fixed in:2:21.1.7-1ubuntu3.6USN-6587-1

Fixed in:2:21.1.7-3ubuntu2.6USN-6587-1

xserver-xorg-coreUbuntu

Fixed in:2:1.18.4-0ubuntu0.12+esm9USN-6587-2

Fixed in:2:1.19.6-1ubuntu4.15+esm4USN-6587-2

Fixed in:2:1.20.13-1ubuntu1~20.04.14USN-6587-1

Fixed in:2:21.1.4-2ubuntu1.7~22.04.7USN-6587-1

Fixed in:2:21.1.7-1ubuntu3.6USN-6587-1

Fixed in:2:21.1.7-3ubuntu2.6USN-6587-1

xwaylandUbuntu

Fixed in:2:1.18.4-0ubuntu0.12+esm9USN-6587-2

Fixed in:2:1.19.6-1ubuntu4.15+esm4USN-6587-2

Fixed in:2:1.20.13-1ubuntu1~20.04.14USN-6587-1

Fixed in:2:22.1.1-1ubuntu0.10USN-6587-1

Fixed in:2:22.1.8-1ubuntu1.4USN-6587-1

Fixed in:2:23.2.0-1ubuntu0.4USN-6587-1

TigerVNCWindows application

Affected:1.13.1Fixed in:1.13.1TigerVNC project

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.36%probability of exploitation in 30 days

28thpercentile

Low risk: more likely to be exploited than 28% of all known CVEs.

References

Third-Party Advisory3

Other references10

Related Vulnerabilities

Other CWE-787 (Out-of-bounds Write) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-22457	Critical	9.0	100%	KEV + Ransom	Fix
CVE-2025-0282	Critical	9.0	100%	KEV + Ransom	-
CVE-2015-3113	Critical	9.8	100%	KEV	Fix
CVE-2021-20038	Critical	9.8	100%	KEV + Ransom	-
CVE-2023-4863	High	8.8	100%	KEV	Fix
CVE-2020-16040	Medium	6.5	100%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-08-29.