CVE-2025-62230— Xorg: xwayland: use-after-free in xkb client resource removal
Quick assessment
Affected
X.Org Xwayland
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Red Hat Enterprise Linux是美国红帽（Red Hat）公司的面向企业用户的Linux操作系统。 Red Hat Enterprise Linux存在资源管理错误漏洞，该漏洞源于清理客户端资源时释放了某些数据结构而未正确分离相关资源，可能导致释放后重用和内存损坏。
Possible ATT&CK Techniques 1 AI
T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2025-62230
Vulnerability Information
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Vulnerability Title
Xorg: xwayland: use-after-free in xkb client resource removal
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was discovered in the X.Org X server’s X Keyboard (Xkb) extension when handling client resource cleanup. The software frees certain data structures without properly detaching related resources, leading to a use-after-free condition. This can cause memory corruption or a crash when affected clients disconnect.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
释放后使用
Source: CVE Program / CVE List V5
Vulnerability Title
Red Hat Enterprise Linux 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Red Hat Enterprise Linux是美国红帽（Red Hat）公司的面向企业用户的Linux操作系统。 Red Hat Enterprise Linux存在资源管理错误漏洞，该漏洞源于清理客户端资源时释放了某些数据结构而未正确分离相关资源，可能导致释放后重用和内存损坏。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| X.Org | Xwayland | 0 ~ 24.1.9 | - |
|
| Red Hat | Red Hat Enterprise Linux 10 | 0:24.1.5-5.el10_0 ~ * |
cpe:/o:redhat:enterprise_linux:10.0
|
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| Red Hat | Red Hat Enterprise Linux 10 | 0:24.1.5-5.el10_1 ~ * |
cpe:/o:redhat:enterprise_linux:10.1
|
|
| Red Hat | Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION | 0:1.1.0-25.el6_10.15 ~ * |
cpe:/o:redhat:rhel_els:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 Extended Lifecycle Support | 0:1.20.4-33.el7_9 ~ * |
cpe:/o:redhat:rhel_els:7
|
|
| Red Hat | Red Hat Enterprise Linux 7 Extended Lifecycle Support | 0:1.8.0-36.el7_9.3 ~ * |
cpe:/o:redhat:rhel_els:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 | 0:21.1.3-19.el8_10 ~ * |
cpe:/a:redhat:enterprise_linux:8::appstream
|
|
| Red Hat | Red Hat Enterprise Linux 8 | 0:1.20.11-27.el8_10 ~ * |
cpe:/a:redhat:enterprise_linux:8::appstream
|
|
| Red Hat | Red Hat Enterprise Linux 8 | 0:1.15.0-8.el8_10 ~ * |
cpe:/a:redhat:enterprise_linux:8::appstream
|
|
| Red Hat | Red Hat Enterprise Linux 8.2 Advanced Update Support | 0:1.9.0-15.el8_2.15 ~ * |
cpe:/a:redhat:rhel_aus:8.2::appstream
|
|
| Red Hat | Red Hat Enterprise Linux 8.2 Advanced Update Support | 0:1.20.6-5.el8_2 ~ * |
cpe:/a:redhat:rhel_aus:8.2::appstream
|
|
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | 0:1.11.0-8.el8_4.14 ~ * |
cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
|
|
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | 0:1.20.10-3.el8_4 ~ * |
cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
|
|
| Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | 0:1.11.0-8.el8_4.14 ~ * |
cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
|
|
| Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | 0:1.20.10-3.el8_4 ~ * |
cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
|
|
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | 0:1.12.0-6.el8_6.15 ~ * |
cpe:/a:redhat:rhel_tus:8.6::appstream
|
|
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | 0:1.20.11-6.el8_6 ~ * |
cpe:/a:redhat:rhel_tus:8.6::appstream
|
|
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | 0:21.1.3-2.el8_6.5 ~ * |
cpe:/a:redhat:rhel_tus:8.6::appstream
|
|
| Red Hat | Red Hat Enterprise Linux 8.6 Telecommunications Update Service | 0:1.12.0-6.el8_6.15 ~ * |
cpe:/a:redhat:rhel_tus:8.6::appstream
|
|
| Red Hat | Red Hat Enterprise Linux 8.6 Telecommunications Update Service | 0:1.20.11-6.el8_6 ~ * |
cpe:/a:redhat:rhel_tus:8.6::appstream
|
|
| Red Hat | Red Hat Enterprise Linux 8.6 Telecommunications Update Service | 0:21.1.3-2.el8_6.5 ~ * |
cpe:/a:redhat:rhel_tus:8.6::appstream
|
|
| Red Hat | Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions | 0:1.12.0-6.el8_6.15 ~ * |
cpe:/a:redhat:rhel_tus:8.6::appstream
|
|
| Red Hat | Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions | 0:1.20.11-6.el8_6 ~ * |
cpe:/a:redhat:rhel_tus:8.6::appstream
|
|
| Red Hat | Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions | 0:21.1.3-2.el8_6.5 ~ * |
cpe:/a:redhat:rhel_tus:8.6::appstream
|
|
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service | 0:1.12.0-15.el8_8.16 ~ * |
cpe:/a:redhat:rhel_tus:8.8::appstream
|
|
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service | 0:1.20.11-17.el8_8 ~ * |
cpe:/a:redhat:rhel_tus:8.8::appstream
|
|
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service | 0:21.1.3-12.el8_8 ~ * |
cpe:/a:redhat:rhel_tus:8.8::appstream
|
|
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | 0:1.12.0-15.el8_8.16 ~ * |
cpe:/a:redhat:rhel_tus:8.8::appstream
|
|
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | 0:1.20.11-17.el8_8 ~ * |
cpe:/a:redhat:rhel_tus:8.8::appstream
|
|
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | 0:21.1.3-12.el8_8 ~ * |
cpe:/a:redhat:rhel_tus:8.8::appstream
|
|
II. Public POCs for CVE-2025-62230
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2025-62230 (30)
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🔗 RHSA-2025:19434 - Security Advisory - Red Hat Customer Portal Read full article vendor-advisory x_refsource_REDHAT
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🔗 RHSA-2025:19433 - Security Advisory - Red Hat Customer Portal Read full article vendor-advisory x_refsource_REDHAT
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🔗 RHSA-2025:19432 - Security Advisory - Red Hat Customer Portal Read full article vendor-advisory x_refsource_REDHAT
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Mailing List Discussions for CVE-2025-62230 (1)
Same Patch Batch · X.Org · 2025-10-30 · 3 CVEs total
| CVE-2025-62231 | 7.3 HIGH | Xorg: xmayland: value overflow in xkbsetcompatmap() |
| CVE-2025-62229 | 7.3 HIGH | Xorg: xmayland: use-after-free in xpresentnotify structure creation |
IV. Related Vulnerabilities
Same product: Xwayland
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CVE-2025-62229
Xorg: xmayland: use-after-free in xpresentnotify structure c -
CVE-2025-62231
Xorg: xmayland: value overflow in xkbsetcompatmap() -
CVE-2025-49180
Xorg-x11-server-xwayland: xorg-x11-server: tigervnc: integer -
CVE-2025-49179
Xorg-x11-server-xwayland: xorg-x11-server: tigervnc: integer -
CVE-2025-49178
Xorg-x11-server-xwayland: xorg-x11-server: tigervnc: unproce
Same vendor: X.Org
-
CVE-2026-94287
Denial of service via unsigned underflow in libXpm's write p -
CVE-2026-94286
Out-of-bounds read in libXtst's RECORD reply parser -
CVE-2026-94285
Out-of-bounds read in libX11's byte-oriented codeset parser -
CVE-2026-94284
Out-of-bounds read vulnerability in libX11's XIM trigger-key -
CVE-2026-94283
Out-of-bounds read vulnerability in libX11's XIM (X Input Me
Same weakness: CWE-416
-
CVE-2026-73637
Apache HTTP Server: mod_auth_digest DoS attack -
CVE-2026-57941
Apache HTTP Server: mod_http2 use-after-free / wild write vi -
CVE-2026-56154
Apache HTTP Server: mod_rewrite use-after-free via %{LA-U:HT -
CVE-2026-103679
Tnef: use-after-free and double-free in get_body_files() via -
CVE-2026-101276
iperf3 3.21远程堆释放后使用漏洞
V. Comments for CVE-2025-62230
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