Cyber Resilience

CVE-2024-0409

Memory Safety in Redhat Enterprise Linux 6.0 … 9.0

Published
18 January 2024
Modified
29 August 2025
CVSS Score v3.1 7.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0036 28th percentile
Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2024-0409 is a high-severity Out-of-bounds Write (CWE-787) vulnerability in Redhat Enterprise Linux. Its CVSS base score is 7.8 (High).

Operationally, ranked at the 28th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability Data

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,…

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that overwrites the XSELINUX context.

CWE(s)

Related Threats

CVEs Like This One

CVE-2023-5367Same product: Fedoraproject Fedora
CVE-2023-6816Same product: Fedoraproject Fedora
CVE-2025-26596Same product: Redhat Enterprise Linux
CVE-2025-26598Same product: Redhat Enterprise Linux
CVE-2024-0229Same product: Fedoraproject Fedora
CVE-2025-26595Same product: Redhat Enterprise Linux
CVE-2019-5544Same product: Fedoraproject Fedora
CVE-2023-43785Same product: Fedoraproject Fedora
CVE-2023-2194Same product: Fedoraproject Fedora
CVE-2018-17480Same product: Redhat Enterprise Linux Desktop

Affected Assets

tigervnc
tigervnc
≤ 1.13.1
x.org
x server
≤ 21.1.11
x.org
xwayland
≤ 23.2.4
fedoraproject
fedora
39
redhat
enterprise linux
6.0, 7.0, 8.0, 9.0
redhat
enterprise linux desktop
7.0
redhat
enterprise linux for ibm z systems
7.0
redhat
enterprise linux for power big endian
7.0
redhat
enterprise linux for power little endian
7.0
redhat
enterprise linux for scientific computing
7.0
+2 more product configuration(s) — see NVD for full list

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-787

Out-of-bounds writes that corrupt control flow or inject shellcode are rendered non-executable by the same memory protections.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure-development practices (static analysis, bounds checking, code review) are the primary means of preventing out-of-bounds writes.

ID.RA-01 partial match
prevents

Vulnerability scanning and recording can discover out-of-bounds write flaws so they can be remediated.

PR.PS-02 partial match
prevents

Patching or replacing vulnerable software directly eliminates known instances of this coding weakness.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

detects

Security testing in development and acceptance can detect and prevent out-of-bounds write defects.

prevents

Secure development life cycle mandates practices that prevent out-of-bounds writes.

prevents

Application security requirements can specify bounds-checking and safe memory handling.

prevents

Secure architecture and engineering principles reduce the likelihood of buffer overflows.

prevents

Secure coding directly addresses out-of-bounds writes through language choice and coding standards.

prevents

Change management can enforce review gates that catch unsafe memory operations before deployment.

References