CVE-2025-26600

A use-after-free flaw was found in X.Org and Xwayland. When a device is removed while still frozen, the events queued for that device remain while the device is freed. Replaying the events will cause a use-after-free.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
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
redhatCNA
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
CISA-ADPADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 4%
VendorProductVersion
tigervnctigervnc
-
x.orgx_server
-
x.orgxwayland
-
redhatenterprise_linux
7.0
redhatenterprise_linux
8.0
redhatenterprise_linux
9.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
xorg-server
bullseye
vulnerable
bookworm
2:21.1.7-3+deb12u9
ignored
bullseye (security)
2:1.20.11-1+deb11u15
fixed
bookworm (security)
2:21.1.7-3+deb12u9
fixed
sid
2:21.1.16-1
fixed
trixie
2:21.1.16-1
fixed
xwayland
bookworm
ignored
sid
2:24.1.6-1
fixed
trixie
2:24.1.6-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
xorg
oracular
not-affected
noble
not-affected
jammy
not-affected
focal
not-affected
bionic
not-affected
xenial
not-affected
xorg-hwe-16.04
oracular
dne
noble
dne
jammy
dne
focal
dne
xenial
not-affected
xorg-hwe-18.04
oracular
dne
noble
dne
jammy
dne
focal
dne
bionic
not-affected
xorg-server
oracular
Fixed 2:21.1.13-2ubuntu1.2
released
noble
Fixed 2:21.1.12-1ubuntu1.2
released
jammy
Fixed 2:21.1.4-2ubuntu1.7~22.04.13
released
focal
Fixed 2:1.20.13-1ubuntu1~20.04.19
released
bionic
Fixed 2:1.19.6-1ubuntu4.15+esm12
released
xenial
Fixed 2:1.18.4-0ubuntu0.12+esm17
released
xorg-server-hwe-16.04
oracular
dne
noble
dne
jammy
dne
focal
dne
xenial
Fixed 2:1.19.6-1ubuntu4.1~16.04.6+esm9
released
xorg-server-hwe-18.04
oracular
dne
noble
dne
jammy
dne
focal
dne
bionic
Fixed 2:1.20.8-2ubuntu2.2~18.04.11+esm4
released
xwayland
oracular
Fixed 2:24.1.2-1ubuntu0.4
released
noble
Fixed 2:23.2.6-1ubuntu0.4
released
jammy
Fixed 2:22.1.1-1ubuntu0.17
released
focal
dne