CVE-2025-62229: Xorg: xmayland: use-after-free in xpresentnotify structure creation

Severity: high (CVSS 7.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-10-30 · updated 2026-06-17
Weakness: CWE-416

Description

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 products

Red Hat Enterprise Linux 10: all versions — fixed in 0:24.1.5-5.el10_0, 0:24.1.5-5.el10_1
Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION: all versions — fixed in 0:1.1.0-25.el6_10.15
Red Hat Enterprise Linux 7 Extended Lifecycle Support: all versions — fixed in 0:1.20.4-33.el7_9, 0:1.8.0-36.el7_9.3
Red Hat Enterprise Linux 8: all versions — fixed in 0:1.15.0-8.el8_10, 0:1.20.11-27.el8_10, 0:21.1.3-19.el8_10
Red Hat Enterprise Linux 8.2 Advanced Update Support: all versions — fixed in 0:1.20.6-5.el8_2, 0:1.9.0-15.el8_2.15
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support: all versions — fixed in 0:1.11.0-8.el8_4.14, 0:1.20.10-3.el8_4
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On: all versions — fixed in 0:1.11.0-8.el8_4.14, 0:1.20.10-3.el8_4
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support: all versions — fixed in 0:1.12.0-6.el8_6.15, 0:1.20.11-6.el8_6, 0:21.1.3-2.el8_6.5
Red Hat Enterprise Linux 8.6 Telecommunications Update Service: all versions — fixed in 0:1.12.0-6.el8_6.15, 0:1.20.11-6.el8_6, 0:21.1.3-2.el8_6.5
Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions: all versions — fixed in 0:1.12.0-6.el8_6.15, 0:1.20.11-6.el8_6, 0:21.1.3-2.el8_6.5
Red Hat Enterprise Linux 8.8 Telecommunications Update Service: all versions — fixed in 0:1.12.0-15.el8_8.16, 0:1.20.11-17.el8_8, 0:21.1.3-12.el8_8
Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions: all versions — fixed in 0:1.12.0-15.el8_8.16, 0:1.20.11-17.el8_8, 0:21.1.3-12.el8_8
Red Hat Enterprise Linux 9: all versions — fixed in 0:1.14.1-9.el9_6, 0:1.15.0-6.el9_7, 0:1.20.11-32.el9_6, 0:1.20.11-32.el9_7, 0:23.2.7-5.el9_6, 0:23.2.7-5.el9_7
Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions: all versions — fixed in 0:1.11.0-22.el9_0.16, 0:1.20.11-12.el9_0, 0:21.1.3-4.el9_0
Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions: all versions — fixed in 0:1.12.0-14.el9_2.13, 0:1.20.11-19.el9_2, 0:21.1.3-9.el9_2
Red Hat Enterprise Linux 9.4 Extended Update Support: all versions — fixed in 0:1.13.1-8.el9_4.8, 0:1.20.11-27.el9_4, 0:22.1.9-7.el9_4
X.Org xwayland: from 1.15.0 before 24.1.9 — fixed in 24.1.9

How to fix

Upgrade to a fixed version: Red Hat Enterprise Linux 10 0:24.1.5-5.el10_0, 0:24.1.5-5.el10_1; Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION 0:1.1.0-25.el6_10.15; Red Hat Enterprise Linux 7 Extended Lifecycle Support 0:1.20.4-33.el7_9, 0:1.8.0-36.el7_9.3; Red Hat Enterprise Linux 8 0:1.15.0-8.el8_10, 0:1.20.11-27.el8_10, 0:21.1.3-19.el8_10; Red Hat Enterprise Linux 8.2 Advanced Update Support 0:1.20.6-5.el8_2, 0:1.9.0-15.el8_2.15; Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support 0:1.11.0-8.el8_4.14, 0:1.20.10-3.el8_4; Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On 0:1.11.0-8.el8_4.14, 0:1.20.10-3.el8_4; Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support 0:1.12.0-6.el8_6.15, 0:1.20.11-6.el8_6, 0:21.1.3-2.el8_6.5; Red Hat Enterprise Linux 8.6 Telecommunications Update Service 0:1.12.0-6.el8_6.15, 0:1.20.11-6.el8_6, 0:21.1.3-2.el8_6.5; Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions 0:1.12.0-6.el8_6.15, 0:1.20.11-6.el8_6, 0:21.1.3-2.el8_6.5; Red Hat Enterprise Linux 8.8 Telecommunications Update Service 0:1.12.0-15.el8_8.16, 0:1.20.11-17.el8_8, 0:21.1.3-12.el8_8; Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions 0:1.12.0-15.el8_8.16, 0:1.20.11-17.el8_8, 0:21.1.3-12.el8_8. Check the vendor advisory for mitigations.

References

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