CVE-2026-34001
EUVD-2026-2523023.04.2026, 16:16
A flaw was found in the X.Org X server. This use-after-free vulnerability occurs in the XSYNC fence triggering logic, specifically within the miSyncTriggerFence() function. An attacker with access to the X11 server can exploit this without user interaction, leading to a server crash and potentially enabling memory corruption. This could result in a denial of service or further compromise of the system.Enginsight
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
| Vendor | Product | Version | Source |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | 0:24.1.5-6.el10_1 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 10 | 0:24.1.9-4.el10_2 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support | 0:24.1.5-6.el10_0 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION | 0:1.1.0-25.el6_10.16 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 7 Extended Lifecycle Support | 0:1.20.4-34.el7_9 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 7 Extended Lifecycle Support | 0:1.8.0-36.el7_9.4 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 8 | 0:21.1.3-20.el8_10 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 8 | 0:1.20.11-28.el8_10 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 8 | 0:1.15.0-9.el8_10 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | 0:1.20.10-4.el8_4 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | 0:1.11.0-8.el8_4.15 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | 0:1.20.10-4.el8_4 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | 0:1.11.0-8.el8_4.15 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | 0:21.1.3-2.el8_6.6 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | 0:1.20.11-7.el8_6 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | 0:1.12.0-6.el8_6.17 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On | 0:1.12.0-6.el8_6.17 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 8.6 Telecommunications Update Service | 0:21.1.3-2.el8_6.6 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 8.6 Telecommunications Update Service | 0:1.20.11-7.el8_6 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions | 0:21.1.3-2.el8_6.6 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions | 0:1.20.11-7.el8_6 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service | 0:21.1.3-13.el8_8 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service | 0:1.20.11-18.el8_8 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service | 0:1.12.0-15.el8_8.17 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | 0:21.1.3-13.el8_8 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | 0:1.20.11-18.el8_8 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | 0:1.12.0-15.el8_8.17 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 9 | 0:1.15.0-6.el9_7.1 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 9 | 0:1.15.0-7.el9_8.1 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 9 | 0:23.2.7-6.el9_7 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 9 | 0:24.1.9-4.el9_8 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 9 | 0:1.20.11-33.el9_7 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 9 | 0:1.20.11-34.el9_8 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions | 0:21.1.3-5.el9_0 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions | 0:1.20.11-13.el9_0 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions | 0:1.11.0-22.el9_0.17 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | 0:21.1.3-10.el9_2 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | 0:1.20.11-20.el9_2 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | 0:1.12.0-14.el9_2.14 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 9.4 Extended Update Support | 0:1.20.11-28.el9_4 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 9.4 Extended Update Support | 0:22.1.9-8.el9_4 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 9.4 Extended Update Support | 0:1.13.1-8.el9_4.9 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support | 0:1.20.11-33.el9_6 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support | 0:23.2.7-6.el9_6 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support | 0:1.14.1-10.el9_6 ≤ 𝑥 < * | ADP |
Debian Releases
Debian Product | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| xorg-server |
| ||||||||||||||||
| xwayland |
|
openSUSE / SLES Releases
openSUSE Product | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| xorg-x11-server |
| ||||||||||||||
| xorg-x11-server-Xvfb |
| ||||||||||||||
| xorg-x11-server-extra |
| ||||||||||||||
| xorg-x11-server-sdk |
|
Red Hat Enterprise Linux Releases
Red Hat Product | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| tigervnc |
| ||||||||||||||||
| tigervnc-icons |
| ||||||||||||||||
| tigervnc-license |
| ||||||||||||||||
| tigervnc-selinux |
| ||||||||||||||||
| tigervnc-server |
| ||||||||||||||||
| tigervnc-server-minimal |
| ||||||||||||||||
| tigervnc-server-module |
| ||||||||||||||||
| xorg-x11-server-Xdmx |
| ||||||||||||||||
| xorg-x11-server-Xephyr |
| ||||||||||||||||
| xorg-x11-server-Xnest |
| ||||||||||||||||
| xorg-x11-server-Xorg |
| ||||||||||||||||
| xorg-x11-server-Xvfb |
| ||||||||||||||||
| xorg-x11-server-Xwayland |
| ||||||||||||||||
| xorg-x11-server-Xwayland-devel |
| ||||||||||||||||
| xorg-x11-server-common |
| ||||||||||||||||
| xorg-x11-server-devel |
| ||||||||||||||||
| xorg-x11-server-source |
|
Amazon Linux Releases
Amazon Package | |||||
|---|---|---|---|---|---|
| tigervnc |
| ||||
| tigervnc-debuginfo |
| ||||
| tigervnc-debugsource |
| ||||
| tigervnc-icons |
| ||||
| tigervnc-license |
| ||||
| tigervnc-selinux |
| ||||
| tigervnc-server |
| ||||
| tigervnc-server-applet |
| ||||
| tigervnc-server-debuginfo |
| ||||
| tigervnc-server-minimal |
| ||||
| tigervnc-server-minimal-debuginfo |
| ||||
| tigervnc-server-module |
| ||||
| tigervnc-server-module-debuginfo |
| ||||
| xorg-x11-server-Xdmx |
| ||||
| xorg-x11-server-Xephyr |
| ||||
| xorg-x11-server-Xephyr-debuginfo |
| ||||
| xorg-x11-server-Xnest |
| ||||
| xorg-x11-server-Xnest-debuginfo |
| ||||
| xorg-x11-server-Xorg |
| ||||
| xorg-x11-server-Xorg-debuginfo |
| ||||
| xorg-x11-server-Xvfb |
| ||||
| xorg-x11-server-Xvfb-debuginfo |
| ||||
| xorg-x11-server-Xwayland |
| ||||
| xorg-x11-server-Xwayland-debuginfo |
| ||||
| xorg-x11-server-Xwayland-debugsource |
| ||||
| xorg-x11-server-Xwayland-devel |
| ||||
| xorg-x11-server-common |
| ||||
| xorg-x11-server-debuginfo |
| ||||
| xorg-x11-server-debugsource |
| ||||
| xorg-x11-server-devel |
| ||||
| xorg-x11-server-source |
|
Common Weakness Enumeration
References