--- id: CVE-2025-62229 title: 'Xorg: xmayland: use-after-free in xpresentnotify structure creation' summary: >- 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 c… severity: high cvss: 7.3 cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H' cvssSource: cna cwe: - CWE-416 vendor: X.Org product: xwayland affected: - xwayland >= 1.15.0 < 24.1.9 - xorg-x11-server-Xwayland (all versions) - xorg-x11-server-Xwayland (all versions) - tigervnc (all versions) - xorg-x11-server (all versions) - tigervnc (all versions) - xorg-x11-server-Xwayland (all versions) - xorg-x11-server (all versions) - tigervnc (all versions) - tigervnc (all versions) - xorg-x11-server (all versions) - tigervnc (all versions) - xorg-x11-server (all versions) - tigervnc (all versions) - xorg-x11-server (all versions) - tigervnc (all versions) - xorg-x11-server (all versions) - xorg-x11-server-Xwayland (all versions) - tigervnc (all versions) - xorg-x11-server (all versions) - xorg-x11-server-Xwayland (all versions) - tigervnc (all versions) - xorg-x11-server (all versions) - xorg-x11-server-Xwayland (all versions) - tigervnc (all versions) - xorg-x11-server (all versions) - xorg-x11-server-Xwayland (all versions) - tigervnc (all versions) - xorg-x11-server (all versions) - xorg-x11-server-Xwayland (all versions) - xorg-x11-server (all versions) - tigervnc (all versions) - xorg-x11-server-Xwayland (all versions) - tigervnc (all versions) - xorg-x11-server-Xwayland (all versions) - xorg-x11-server (all versions) - tigervnc (all versions) - xorg-x11-server (all versions) - xorg-x11-server-Xwayland (all versions) - tigervnc (all versions) - xorg-x11-server (all versions) - xorg-x11-server-Xwayland (all versions) - tigervnc (all versions) - xorg-x11-server (all versions) - xorg-x11-server-Xwayland (all versions) - xorg-x11-server ssvc: exploitation: none automatable: 'no' technicalImpact: total timestamp: '2025-10-31T03:55:33.342598Z' published: '2025-10-30' updated: '2026-11-05' sourceUpdated: '2026-11-05T16:35:40.565Z' source: CVEORG sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2025-62229' references: - url: 'https://access.redhat.com/errata/RHSA-2025:19432' label: 'RHSA-2025:19432' - url: 'https://access.redhat.com/errata/RHSA-2025:19433' label: 'RHSA-2025:19433' - url: 'https://access.redhat.com/errata/RHSA-2025:19434' label: 'RHSA-2025:19434' - url: 'https://access.redhat.com/errata/RHSA-2025:19435' label: 'RHSA-2025:19435' - url: 'https://access.redhat.com/errata/RHSA-2025:19489' label: 'RHSA-2025:19489' - url: 'https://access.redhat.com/errata/RHSA-2025:19623' label: 'RHSA-2025:19623' - url: 'https://access.redhat.com/errata/RHSA-2025:19909' label: 'RHSA-2025:19909' - url: 'https://access.redhat.com/errata/RHSA-2025:20958' label: 'RHSA-2025:20958' - url: 'https://access.redhat.com/errata/RHSA-2025:20960' label: 'RHSA-2025:20960' - url: 'https://access.redhat.com/errata/RHSA-2025:20961' label: 'RHSA-2025:20961' - url: 'https://access.redhat.com/errata/RHSA-2025:21035' label: 'RHSA-2025:21035' - url: 'https://access.redhat.com/errata/RHSA-2025:22040' label: 'RHSA-2025:22040' - url: 'https://access.redhat.com/errata/RHSA-2025:22041' label: 'RHSA-2025:22041' - url: 'https://access.redhat.com/errata/RHSA-2025:22051' label: 'RHSA-2025:22051' - url: 'https://access.redhat.com/errata/RHSA-2025:22055' label: 'RHSA-2025:22055' - url: 'https://access.redhat.com/errata/RHSA-2025:22056' label: 'RHSA-2025:22056' - url: 'https://access.redhat.com/errata/RHSA-2025:22077' label: 'RHSA-2025:22077' - url: 'https://access.redhat.com/errata/RHSA-2025:22096' label: 'RHSA-2025:22096' - url: 'https://access.redhat.com/errata/RHSA-2025:22164' label: 'RHSA-2025:22164' - url: 'https://access.redhat.com/errata/RHSA-2025:22167' label: 'RHSA-2025:22167' - url: 'https://access.redhat.com/errata/RHSA-2025:22364' label: 'RHSA-2025:22364' - url: 'https://access.redhat.com/errata/RHSA-2025:22365' label: 'RHSA-2025:22365' - url: 'https://access.redhat.com/errata/RHSA-2025:22426' label: 'RHSA-2025:22426' - url: 'https://access.redhat.com/errata/RHSA-2025:22427' label: 'RHSA-2025:22427' - url: 'https://access.redhat.com/errata/RHSA-2025:22667' label: 'RHSA-2025:22667' - url: 'https://access.redhat.com/errata/RHSA-2025:22729' label: 'RHSA-2025:22729' - url: 'https://access.redhat.com/errata/RHSA-2025:22742' label: 'RHSA-2025:22742' - url: 'https://access.redhat.com/errata/RHSA-2025:22753' label: 'RHSA-2025:22753' - url: 'https://access.redhat.com/errata/RHSA-2026:0031' label: 'RHSA-2026:0031' - url: 'https://access.redhat.com/errata/RHSA-2026:0033' label: 'RHSA-2026:0033' - url: 'https://access.redhat.com/errata/RHSA-2026:0034' label: 'RHSA-2026:0034' - url: 'https://access.redhat.com/errata/RHSA-2026:0035' label: 'RHSA-2026:0035' - url: 'https://access.redhat.com/errata/RHSA-2026:0036' label: 'RHSA-2026:0036' - url: 'https://access.redhat.com/security/cve/CVE-2025-62229' - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2402649' label: RHBZ#2402649 - url: 'https://lists.x.org/archives/xorg-announce/2025-October/003635.html' tags: - cve.org epss: 0.00508 epssPercentile: 0.43547 ingestedAt: '2026-11-05T22:38:31.370Z' --- ## Overview 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. ## Affected - `xwayland >= 1.15.0 < 24.1.9` - `xorg-x11-server-Xwayland (all versions)` - `xorg-x11-server-Xwayland (all versions)` - `tigervnc (all versions)` - `xorg-x11-server (all versions)` - `tigervnc (all versions)` - `xorg-x11-server-Xwayland (all versions)` - `xorg-x11-server (all versions)` - `tigervnc (all versions)` - `tigervnc (all versions)` - `xorg-x11-server (all versions)` - `tigervnc (all versions)` - `xorg-x11-server (all versions)` - `tigervnc (all versions)` - `xorg-x11-server (all versions)` - `tigervnc (all versions)` - `xorg-x11-server (all versions)` - `xorg-x11-server-Xwayland (all versions)` - `tigervnc (all versions)` - `xorg-x11-server (all versions)` - `xorg-x11-server-Xwayland (all versions)` - `tigervnc (all versions)` - `xorg-x11-server (all versions)` - `xorg-x11-server-Xwayland (all versions)` - `tigervnc (all versions)` - `xorg-x11-server (all versions)` - `xorg-x11-server-Xwayland (all versions)` - `tigervnc (all versions)` - `xorg-x11-server (all versions)` - `xorg-x11-server-Xwayland (all versions)` - `xorg-x11-server (all versions)` - `tigervnc (all versions)` - `xorg-x11-server-Xwayland (all versions)` - `tigervnc (all versions)` - `xorg-x11-server-Xwayland (all versions)` - `xorg-x11-server (all versions)` - `tigervnc (all versions)` - `xorg-x11-server (all versions)` - `xorg-x11-server-Xwayland (all versions)` - `tigervnc (all versions)` - `xorg-x11-server (all versions)` - `xorg-x11-server-Xwayland (all versions)` - `tigervnc (all versions)` - `xorg-x11-server (all versions)` - `xorg-x11-server-Xwayland (all versions)` - `xorg-x11-server` ## Remediation Refer to the linked advisories for vendor-supplied fixes and affected version ranges. ### Workarounds Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.