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Vulnerabilities

Vulnerability · CVE-2024-0229

An out-of-bounds memory access flaw was found in the X.Org server.

Published Feb 9, 2024 · catalog updated Nov 4, 2026 · x server

Last checked Nov 5, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2024-0229. EPSS is 1.23%. Act only if a listed version of x server is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
High7.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
1.23%
Remediation
Version ranges on file
Affected products
cpe redhat/enterprise linux · cpe redhat/enterprise linux aus · cpe redhat/enterprise linux eus · cpe x.org/x server · cpe x.org/xwayland

An out-of-bounds memory access flaw was found in the X.Org server. This issue can be triggered when a device frozen by a sync grab is reattached to a different master device. This issue may lead to an application crash, local privilege escalation (if the server runs with extended privileges), or remote code execution in SSH X11 forwarding environments.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe redhat/enterprise linux7.0
  • cpe redhat/enterprise linux8.0
  • cpe redhat/enterprise linux9.0
  • cpe redhat/enterprise linux aus8.2
  • cpe redhat/enterprise linux aus8.4
  • cpe redhat/enterprise linux eus8.6
  • cpe x.org/x server< 21.1.11
  • cpe x.org/xwayland< 23.2.4

How to fix CVE-2024-0229

  • Upgrade

    CVE-2024-0229 lists a fix boundary at 21.1.11. Compare the installed build with that boundary before you change production.

  • Version check

    Seen in 7.0 · 5 other packages on the advisory

  • Advisory

    Open the cve_org record and follow its fix.

  • Official advisories

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2024-0229. EPSS is 1.23%. Act only if a listed version of x server is installed.

Which versions are affected?

Compare what you have installed with redhat/enterprise linux 7.0; redhat/enterprise linux 8.0; redhat/enterprise linux 9.0; redhat/enterprise linux aus 8.2. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-787: Out-of-bounds Write. EPSS 1.23%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Feb 9, 2024 · NIST NVD

    Detected

    An out-of-bounds memory access flaw was found in the X.Org server. This issue can be triggered when a device frozen by a sync grab is reattached to a different master device. This issue may lead to an application crash, local privilege escalation (if the server runs with extended privileges), or remote code execution in SSH X11 forwarding environments.

  2. Nov 4, 2026 · NIST NVD

    Updated

    An out-of-bounds memory access flaw was found in the X.Org server. This issue can be triggered when a device frozen by a sync grab is reattached to a different master device. This issue may lead to an application crash, local privilege escalation (if the server runs with extended privileges), or remote code execution in SSH X11 forwarding environments.

Sources

  • CVE.orgVulnerability recordCVE-2024-0229

    Official CVE identifier

    cve.org
  • NIST NVDVulnerability recordCVE-2024-0229

    An out-of-bounds memory access flaw was found in the X.Org server. This issue can be triggered when a device frozen by a sync grab is reattached to a different master device. This issue may lead to an application crash, local privilege escalation (if the server runs with extended

    nvd.nist.gov

References

Freshness

Last verified in this catalog Nov 5, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • CVE.orgNov 5, 2026
  • NIST NVDNov 5, 2026