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I. Basic Information for CVE-2025-26595
Vulnerability Information
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Vulnerability Title
Xorg: xwayland: buffer overflow in xkbvmodmasktext()
Source: NVD (National Vulnerability Database)
Vulnerability Description
A buffer overflow flaw was found in X.Org and Xwayland. The code in XkbVModMaskText() allocates a fixed-sized buffer on the stack and copies the names of the virtual modifiers to that buffer. The code fails to check the bounds of the buffer and would copy the data regardless of the size.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
栈缓冲区溢出
Source: NVD (National Vulnerability Database)
Vulnerability Title
X.Org和Xwayland 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
X.Org是X.Org基金会的一个开放源代码的自由软件。Xwayland是Xwayland开源的一个通信协议，规定了显示服务器与其客户机之间的通信方式。 X.Org和Xwayland存在安全漏洞，该漏洞源于XkbVModMaskText函数在栈上分配固定大小的缓冲区并复制虚拟修饰符名称到该缓冲区，代码未检查缓冲区边界，可能导致缓冲区溢出。
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
VendorProductAffected VersionsCPESubscribe
-- 0 ~ 21.1.16 -
Red HatRed Hat Enterprise Linux 10 0:24.1.5-3.el10_0 ~ * cpe:/o:redhat:enterprise_linux:10.0
Red HatRed Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION 0:1.1.0-25.el6_10 ~ * cpe:/o:redhat:rhel_els:6
Red HatRed Hat Enterprise Linux 7 Extended Lifecycle Support 0:1.8.0-36.el7_9 ~ * cpe:/o:redhat:rhel_els:7
Red HatRed Hat Enterprise Linux 7 Extended Lifecycle Support 0:1.20.4-30.el7_9 ~ * cpe:/o:redhat:rhel_els:7
Red HatRed Hat Enterprise Linux 8 0:1.13.1-15.el8_10 ~ * cpe:/a:redhat:enterprise_linux:8::appstream
Red HatRed Hat Enterprise Linux 8.2 Advanced Update Support 0:1.9.0-15.el8_2.13 ~ * cpe:/a:redhat:rhel_aus:8.2::appstream
Red HatRed Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support 0:1.11.0-8.el8_4.12 ~ * cpe:/a:redhat:rhel_aus:8.4::appstream
Red HatRed Hat Enterprise Linux 8.4 Telecommunications Update Service 0:1.11.0-8.el8_4.12 ~ * cpe:/a:redhat:rhel_aus:8.4::appstream
Red HatRed Hat Enterprise Linux 8.4 Update Services for SAP Solutions 0:1.11.0-8.el8_4.12 ~ * cpe:/a:redhat:rhel_aus:8.4::appstream
Red HatRed Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support 0:1.12.0-6.el8_6.13 ~ * cpe:/a:redhat:rhel_tus:8.6::appstream
Red HatRed Hat Enterprise Linux 8.6 Telecommunications Update Service 0:1.12.0-6.el8_6.13 ~ * cpe:/a:redhat:rhel_tus:8.6::appstream
Red HatRed Hat Enterprise Linux 8.6 Update Services for SAP Solutions 0:1.12.0-6.el8_6.13 ~ * cpe:/a:redhat:rhel_tus:8.6::appstream
Red HatRed Hat Enterprise Linux 8.8 Extended Update Support 0:1.12.0-15.el8_8.12 ~ * cpe:/a:redhat:rhel_eus:8.8::appstream
Red HatRed Hat Enterprise Linux 9 0:1.14.1-1.el9_5.1 ~ * cpe:/a:redhat:enterprise_linux:9::appstream
Red HatRed Hat Enterprise Linux 9 0:1.20.11-28.el9_6 ~ * cpe:/a:redhat:enterprise_linux:9::appstream
Red HatRed Hat Enterprise Linux 9 0:23.2.7-3.el9_6 ~ * cpe:/a:redhat:enterprise_linux:9::appstream
Red HatRed Hat Enterprise Linux 9.0 Update Services for SAP Solutions 0:1.11.0-22.el9_0.13 ~ * cpe:/a:redhat:rhel_e4s:9.0::appstream
Red HatRed Hat Enterprise Linux 9.2 Extended Update Support 0:1.12.0-14.el9_2.10 ~ * cpe:/a:redhat:rhel_eus:9.2::appstream
Red HatRed Hat Enterprise Linux 9.4 Extended Update Support 0:1.13.1-8.el9_4.5 ~ * cpe:/a:redhat:rhel_eus:9.4::appstream
Red HatRed Hat Enterprise Linux 6-cpe:/o:redhat:enterprise_linux:6
Red HatRed Hat Enterprise Linux 8-cpe:/o:redhat:enterprise_linux:8
Red HatRed Hat Enterprise Linux 8-cpe:/o:redhat:enterprise_linux:8
II. Public POCs for CVE-2025-26595
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III. Intelligence Information for CVE-2025-26595
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IV. Related Vulnerabilities
Same weakness: CWE-121
V. Comments for CVE-2025-26595

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