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Vulnerabilities

Vulnerability · CVE-2025-62229

A flaw was found in the X.Org X server and Xwayland when processing X11 Present extension notifications.

Published Oct 30, 2025 · catalog updated Apr 20, 2026 · X.org Red Hat Enterprise Linux 8.6 Telecommunications Update Service

Check if you run it

No confirmed exploitation is on record for CVE-2025-62229. EPSS is 0.51%. Act only if a listed version of X.org Red Hat Enterprise Linux 8.6 Telecommunications Update Service is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.51%
Remediation
Vendor / distro source
Affected products
vendor X.org Red Hat Enterprise Linux 8.6 Telecommunications Update Service patch: 0:21.1.3-2.el8_6.5

A flaw was found in the X.Org X server and Xwayland when processing X11 Present extension notifications. Improper error handling during notification creation can leave dangling pointers that lead to a use-after-free condition. This can cause memory corruption or a crash, potentially allowing an attacker to execute arbitrary code or cause a denial of service.

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.

  • vendor X.org Red Hat Enterprise Linux 8.6 Telecommunications Update Service patch: 0:21.1.3-2.el8_6.5patch: 0:21.1.3-2.el8_6.5

How to fix CVE-2025-62229

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-2025-62229. EPSS is 0.51%. Act only if a listed version of X.org Red Hat Enterprise Linux 8.6 Telecommunications Update Service is installed.

Which versions are affected?

Compare what you have installed with X.org Red Hat Enterprise Linux 8.6 Telecommunications Update Service patch: 0:21.1.3-2.el8_6.5 patch: 0:21.1.3-2.el8_6.5. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.51%. 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. Oct 30, 2025 · EUVD

    Detected

    A flaw was found in the X.Org X server and Xwayland when processing X11 Present extension notifications. Improper error handling during notification creation can leave dangling pointers that lead to a use-after-free condition. This can cause memory corruption or a crash, potentially allowing an attacker to execute arbitrary code or cause a denial of service.

  2. Apr 20, 2026 · EUVD

    Updated

    A flaw was found in the X.Org X server and Xwayland when processing X11 Present extension notifications. Improper error handling during notification creation can leave dangling pointers that lead to a use-after-free condition. This can cause memory corruption or a crash, potentially allowing an attacker to execute arbitrary code or cause a denial of service.

Sources

  • CVE.orgVulnerability recordCVE-2025-62229

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-62229

    30-day exploitation probability 0.51%

    first.org
  • EUVDVulnerability recordEUVD-2025-36899

    A flaw was found in the X.Org X server and Xwayland when processing X11 Present extension notifications. Improper error handling during notification creation can leave dangling pointers that lead to a use-after-free condition. This can cause memory corruption or a crash, potentia

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 24, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.