CVE-2025-26598— Xorg: xwayland: out-of-bounds write in createpointerbarrierclient()
Possible ATT&CK Techniques 1AI
T1203 · Exploitation for Client ExecutionAffected Version Matrix 24
I. Basic Information for CVE-2025-26598
Vulnerability Information
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Vulnerability Title
Xorg: xwayland: out-of-bounds write in createpointerbarrierclient()
Source: CVE Program / CVE List V5
Vulnerability Description
An out-of-bounds write flaw was found in X.Org and Xwayland. The function GetBarrierDevice() searches for the pointer device based on its device ID and returns the matching value, or supposedly NULL, if no match was found. However, the code will return the last element of the list if no matching device ID is found, which can lead to out-of-bounds memory access.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存写
Source: CVE Program / CVE List V5
Vulnerability Title
X.Org和Xwayland 缓冲区错误漏洞
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存在缓冲区错误漏洞，该漏洞源于GetBarrierDevice函数在未找到匹配设备ID时返回列表的最后一个元素，可能导致越界写入。
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 |
|---|---|---|---|---|
| - | - | 0 ~ 21.1.16 | - | |
| Red Hat | Red Hat Enterprise Linux 10 | 0:24.1.5-3.el10_0 ~ * | cpe:/o:redhat:enterprise_linux:10.0 | |
| Red Hat | Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION | 0:1.1.0-25.el6_10 ~ * | cpe:/o:redhat:rhel_els:6 | |
| Red Hat | Red Hat Enterprise Linux 7 Extended Lifecycle Support | 0:1.8.0-36.el7_9 ~ * | cpe:/o:redhat:rhel_els:7 | |
| Red Hat | Red Hat Enterprise Linux 7 Extended Lifecycle Support | 0:1.20.4-30.el7_9 ~ * | cpe:/o:redhat:rhel_els:7 | |
| Red Hat | Red Hat Enterprise Linux 8 | 0:1.13.1-15.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_2.13 ~ * | 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_4.12 ~ * | cpe:/a:redhat:rhel_aus:8.4::appstream | |
| Red Hat | Red 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 Hat | Red 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 Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | 0:1.12.0-6.el8_6.13 ~ * | cpe:/a:redhat:rhel_aus:8.6::appstream | |
| Red Hat | Red Hat Enterprise Linux 8.6 Telecommunications Update Service | 0:1.12.0-6.el8_6.13 ~ * | cpe:/a:redhat:rhel_aus:8.6::appstream | |
| Red Hat | Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions | 0:1.12.0-6.el8_6.13 ~ * | cpe:/a:redhat:rhel_aus:8.6::appstream | |
| Red Hat | Red 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 Hat | Red Hat Enterprise Linux 9 | 0:1.14.1-1.el9_5.1 ~ * | cpe:/a:redhat:enterprise_linux:9::appstream | |
| Red Hat | Red Hat Enterprise Linux 9 | 0:1.20.11-28.el9_6 ~ * | cpe:/a:redhat:enterprise_linux:9::appstream | |
| Red Hat | Red Hat Enterprise Linux 9 | 0:23.2.7-3.el9_6 ~ * | cpe:/a:redhat:enterprise_linux:9::appstream | |
| Red Hat | Red 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 Hat | Red 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 Hat | Red 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 Hat | Red Hat Enterprise Linux 6 | - | cpe:/o:redhat:enterprise_linux:6 | |
| Red Hat | Red Hat Enterprise Linux 8 | - | cpe:/o:redhat:enterprise_linux:8 | |
| Red Hat | Red Hat Enterprise Linux 8 | - | cpe:/o:redhat:enterprise_linux:8 |
II. Public POCs for CVE-2025-26598
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2025-26598 (16)
- 2345254 – (CVE-2025-26598) CVE-2025-26598 xorg: xwayland: Out-of-bounds write in CreatePointerBarrierClient()issue-trackingx_refsource_REDHAT
- 🔗 RHSA-2025:7458 - Security Advisory - Red Hat Customer Portal Read full article vendor-advisoryx_refsource_REDHAT
- 🔗 RHSA-2025:7165 - Security Advisory - Red Hat Customer Portal Read full article vendor-advisoryx_refsource_REDHAT
- 🔗 RHSA-2025:7163 - Security Advisory - Red Hat Customer Portal Read full article vendor-advisoryx_refsource_REDHAT
IV. Related Vulnerabilities
Same weakness: CWE-787
- CVE-2026-10682
Out-of-bounds write in Zephyr `log_filter_set` syscall verif - CVE-2026-66041
FFmpeg 7.0 - 8.1.2 Heap Out-of-Bounds Write via vf_quirc Fil - CVE-2026-45813
Apache NimBLE: Incorrect data validation in BASS add/modify - CVE-2026-16807
Google Chrome 缓冲区错误漏洞 - CVE-2026-65706
FFmpeg 3.0 - 8.1.2 vf_swaprect Out-of-Bounds Write via NV12
V. Comments for CVE-2025-26598
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