CVE-2025-62231— Xorg: xmayland: value overflow in xkbsetcompatmap()
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存在安全漏洞，该漏洞源于XkbSetCompatMap函数中边界检查不当，可能导致无符号短整型溢出，进而引发内存损坏或崩溃。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-62231
Vulnerability Information
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Vulnerability Title
Xorg: xmayland: value overflow in xkbsetcompatmap()
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was identified in the X.Org X server’s X Keyboard (Xkb) extension where improper bounds checking in the XkbSetCompatMap() function can cause an unsigned short overflow. If an attacker sends specially crafted input data, the value calculation may overflow, leading to memory corruption or a crash.
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
整数溢出或超界折返
Source: CVE Program / CVE List V5
Vulnerability Title
Red Hat Enterprise Linux 安全漏洞
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存在安全漏洞，该漏洞源于XkbSetCompatMap函数中边界检查不当，可能导致无符号短整型溢出，进而引发内存损坏或崩溃。
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::crb
|
|
| 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-2025-62231
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2025-62231 (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-2025-62231 (1)
Same Patch Batch · X.Org · 2025-10-30 · 3 CVEs total
| CVE-2025-62230 | 7.3 HIGH | Xorg: xwayland: use-after-free in xkb client resource removal |
| CVE-2025-62229 | 7.3 HIGH | Xorg: xmayland: use-after-free in xpresentnotify structure creation |
IV. Related Vulnerabilities
Same product: Xwayland
-
CVE-2025-62229
Xorg: xmayland: use-after-free in xpresentnotify structure c -
CVE-2025-62230
Xorg: xwayland: use-after-free in xkb client resource remova -
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
V. Comments for CVE-2025-62231
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