CVE-2026-93520

EUVD-2026-112135
A heap buffer overflow caused by mismatching size calculations between XkbAllocNames and  ChangeKeycodeRange in X.org X server before 2.1.25 and XWayland before 24.1.14 could be used by authenticated X clients to crash or potentially execute code in X server context.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
suseCNA
7.8 HIGH
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources (CNA/ADP records, vendor advisories, Enginsight analysis).
VendorProductVersionSource
x.orgxwayland
𝑥
< 24.1.14
CNA
Debian logo
Debian Releases
Debian Product
Codename
xorg-server
bookworm
vulnerable
bookworm (security)
vulnerable
forky
2:21.1.25-2
fixed
sid
2:21.1.25-2
fixed
trixie
vulnerable
trixie (security)
vulnerable
xwayland
bookworm
unimportant
forky
2:24.1.14-1
fixed
sid
2:24.1.14-1
fixed
trixie
unimportant
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
xorg
bionic
not-affected
focal
not-affected
jammy
not-affected
noble
not-affected
resolute
not-affected
stonking
not-affected
xenial
not-affected
xorg-server
bionic
needs-triage
focal
needs-triage
jammy
needs-triage
noble
needs-triage
resolute
needs-triage
stonking
needs-triage
trusty
needs-triage
xenial
needs-triage
xwayland
jammy
needs-triage
noble
needs-triage
resolute
needs-triage
stonking
needs-triage
xorg-server-hwe-16.04
jammy
dne
noble
dne
resolute
dne
stonking
dne
xenial
needs-triage
xorg-server-hwe-18.04
bionic
needs-triage
jammy
dne
noble
dne
resolute
dne
stonking
dne
xorg-hwe-16.04
jammy
dne
noble
dne
resolute
dne
stonking
dne
xenial
not-affected
xorg-hwe-18.04
bionic
not-affected
jammy
dne
noble
dne
resolute
dne
stonking
dne
openSUSE logo
openSUSE / SLES Releases
openSUSE Product
Release
xorg-x11-server
suse enterprise desktop 15 SP7
21.1.15-150700.5.25.1
fixed
suse enterprise sap 12 SP5
1.19.6-10.108.1
fixed
suse enterprise sap 15 SP4
1.20.3-150400.38.77.1
fixed
suse enterprise sap 15 SP5
21.1.4-150500.7.55.1
fixed
suse enterprise sap 15 SP6
21.1.11-150600.5.34.1
fixed
suse enterprise sap 15 SP7
21.1.15-150700.5.25.1
fixed
suse enterprise server 12 SP5
1.19.6-10.108.1
fixed
suse enterprise server 15 SP4
1.20.3-150400.38.77.1
fixed
suse enterprise server 15 SP5
21.1.4-150500.7.55.1
fixed
suse enterprise server 15 SP6
21.1.11-150600.5.34.1
fixed
suse enterprise server 15 SP7
21.1.15-150700.5.25.1
fixed
xorg-x11-server-Xvfb
suse enterprise desktop 15 SP7
21.1.15-150700.5.25.1
fixed
suse enterprise sap 15 SP5
21.1.4-150500.7.55.1
fixed
suse enterprise sap 15 SP6
21.1.11-150600.5.34.1
fixed
suse enterprise sap 15 SP7
21.1.15-150700.5.25.1
fixed
suse enterprise server 15 SP5
21.1.4-150500.7.55.1
fixed
suse enterprise server 15 SP6
21.1.11-150600.5.34.1
fixed
suse enterprise server 15 SP7
21.1.15-150700.5.25.1
fixed
xorg-x11-server-extra
suse enterprise desktop 15 SP7
21.1.15-150700.5.25.1
fixed
suse enterprise sap 12 SP5
1.19.6-10.108.1
fixed
suse enterprise sap 15 SP4
1.20.3-150400.38.77.1
fixed
suse enterprise sap 15 SP5
21.1.4-150500.7.55.1
fixed
suse enterprise sap 15 SP6
21.1.11-150600.5.34.1
fixed
suse enterprise sap 15 SP7
21.1.15-150700.5.25.1
fixed
suse enterprise server 12 SP5
1.19.6-10.108.1
fixed
suse enterprise server 15 SP4
1.20.3-150400.38.77.1
fixed
suse enterprise server 15 SP5
21.1.4-150500.7.55.1
fixed
suse enterprise server 15 SP6
21.1.11-150600.5.34.1
fixed
suse enterprise server 15 SP7
21.1.15-150700.5.25.1
fixed
xorg-x11-server-sdk
suse enterprise sap 15 SP4
1.20.3-150400.38.77.1
fixed
suse enterprise sap 15 SP5
21.1.4-150500.7.55.1
fixed
suse enterprise sap 15 SP6
21.1.11-150600.5.34.1
fixed
suse enterprise server 15 SP4
1.20.3-150400.38.77.1
fixed
suse enterprise server 15 SP5
21.1.4-150500.7.55.1
fixed
suse enterprise server 15 SP6
21.1.11-150600.5.34.1
fixed
Red Hat logo
Red Hat Enterprise Linux Releases
Red Hat Product
Release
xorg-x11-server-Xdmx
RHEL 8
0:1.20.11-28.el8_10.5
fixed
RHEL 9
0:1.20.11-34.el9_8.5
fixed
xorg-x11-server-Xephyr
RHEL 8
0:1.20.11-28.el8_10.5
fixed
RHEL 9
0:1.20.11-34.el9_8.5
fixed
xorg-x11-server-Xnest
RHEL 8
0:1.20.11-28.el8_10.5
fixed
RHEL 9
0:1.20.11-34.el9_8.5
fixed
xorg-x11-server-Xorg
RHEL 8
0:1.20.11-28.el8_10.5
fixed
RHEL 9
0:1.20.11-34.el9_8.5
fixed
xorg-x11-server-Xvfb
RHEL 8
0:1.20.11-28.el8_10.5
fixed
RHEL 9
0:1.20.11-34.el9_8.5
fixed
xorg-x11-server-Xwayland
RHEL 9
0:24.1.9-4.el9_8.4
fixed
xorg-x11-server-Xwayland-devel
RHEL 9
0:24.1.9-4.el9_8.4
fixed
xorg-x11-server-common
RHEL 8
0:1.20.11-28.el8_10.5
fixed
RHEL 9
0:1.20.11-34.el9_8.5
fixed
xorg-x11-server-devel
RHEL 8
0:1.20.11-28.el8_10.5
fixed
RHEL 9
0:1.20.11-34.el9_8.5
fixed
xorg-x11-server-source
RHEL 8
0:1.20.11-28.el8_10.5
fixed
RHEL 9
0:1.20.11-34.el9_8.5
fixed
Common Weakness Enumeration
Vulnerability Media Exposure
References
https://gitlab.freedesktop.org/xorg/xserver/-/commit/b941a473e06f26a407a9adb15759be79f7418e86