CVE-2026-94286

EUVD-2026-88178
An out-of-bounds read in libXtst's RECORD reply parser in libXtst before 1.2.6 could be used by malicious X servers to crash attached X clients.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
suseCNA
7.1 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 10.29%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources (CNA/ADP records, vendor advisories, Enginsight analysis).
VendorProductVersionSource
xlibxtst
𝑥
< 1.2.6
CNA
Debian logo
Debian Releases
Debian Product
Codename
libxtst
bookworm
postponed
forky
2:1.2.6-1
fixed
sid
2:1.2.6-1
fixed
trixie
no-dsa
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
libxtst
bionic
Fixed in 2:1.2.3-1ubuntu0.18.04.1~esm1
released
focal
Fixed in 2:1.2.3-1ubuntu0.20.04.1~esm1
released
jammy
Fixed in 2:1.2.3-1ubuntu0.22.04.1
released
noble
Fixed in 2:1.2.3-1.1ubuntu0.1
released
resolute
Fixed in 2:1.2.5-1ubuntu0.1
released
stonking
Fixed in 2:1.2.5-1ubuntu1
released
xenial
Fixed in 2:1.2.2-1ubuntu0.1~esm1
released
openSUSE logo
openSUSE / SLES Releases
openSUSE Product
Release
libXtst-devel
suse enterprise desktop 15 SP7
1.2.3-150000.3.3.1
fixed
suse enterprise sap 12 SP5
1.2.2-8.3.1
fixed
suse enterprise sap 15 SP4
1.2.3-150000.3.3.1
fixed
suse enterprise sap 15 SP5
1.2.3-150000.3.3.1
fixed
suse enterprise sap 15 SP6
1.2.3-150000.3.3.1
fixed
suse enterprise sap 15 SP7
1.2.3-150000.3.3.1
fixed
suse enterprise server 12 SP5
1.2.2-8.3.1
fixed
suse enterprise server 15 SP4
1.2.3-150000.3.3.1
fixed
suse enterprise server 15 SP5
1.2.3-150000.3.3.1
fixed
suse enterprise server 15 SP6
1.2.3-150000.3.3.1
fixed
suse enterprise server 15 SP7
1.2.3-150000.3.3.1
fixed
libXtst6
suse enterprise desktop 15 SP7
1.2.3-150000.3.3.1
fixed
suse enterprise sap 12 SP5
1.2.2-8.3.1
fixed
suse enterprise sap 15 SP4
1.2.3-150000.3.3.1
fixed
suse enterprise sap 15 SP5
1.2.3-150000.3.3.1
fixed
suse enterprise sap 15 SP6
1.2.3-150000.3.3.1
fixed
suse enterprise sap 15 SP7
1.2.3-150000.3.3.1
fixed
suse enterprise server 12 SP3
1.2.2-8.3.1
fixed
suse enterprise server 12 SP5
1.2.2-8.3.1
fixed
suse enterprise server 15 SP4
1.2.3-150000.3.3.1
fixed
suse enterprise server 15 SP5
1.2.3-150000.3.3.1
fixed
suse enterprise server 15 SP6
1.2.3-150000.3.3.1
fixed
suse enterprise server 15 SP7
1.2.3-150000.3.3.1
fixed
libXtst6-32bit
suse enterprise desktop 15 SP7
1.2.3-150000.3.3.1
fixed
suse enterprise sap 12 SP5
1.2.2-8.3.1
fixed
suse enterprise sap 15 SP4
1.2.3-150000.3.3.1
fixed
suse enterprise sap 15 SP5
1.2.3-150000.3.3.1
fixed
suse enterprise sap 15 SP6
1.2.3-150000.3.3.1
fixed
suse enterprise sap 15 SP7
1.2.3-150000.3.3.1
fixed
suse enterprise server 12 SP3
1.2.2-8.3.1
fixed
suse enterprise server 12 SP5
1.2.2-8.3.1
fixed
suse enterprise server 15 SP4
1.2.3-150000.3.3.1
fixed
suse enterprise server 15 SP5
1.2.3-150000.3.3.1
fixed
suse enterprise server 15 SP6
1.2.3-150000.3.3.1
fixed
suse enterprise server 15 SP7
1.2.3-150000.3.3.1
fixed
Red Hat logo
Red Hat Enterprise Linux Releases
Red Hat Product
Release
libXtst
RHEL 8
0:1.2.3-8.el8_10
fixed
RHEL 8.4 AUS
0:1.2.3-7.el8_4.1
fixed
RHEL 8.6 AUS
0:1.2.3-7.el8_6.1
fixed
RHEL 8.8 E4S
0:1.2.3-7.el8_8.1
fixed
RHEL 8.8 TUS
0:1.2.3-7.el8_8.1
fixed
RHEL 9
0:1.2.3-16.el9_9.1
fixed
libXtst-devel
RHEL 8
0:1.2.3-8.el8_10
fixed
RHEL 8.4 AUS
0:1.2.3-7.el8_4.1
fixed
RHEL 8.6 AUS
0:1.2.3-7.el8_6.1
fixed
RHEL 8.8 E4S
0:1.2.3-7.el8_8.1
fixed
RHEL 8.8 TUS
0:1.2.3-7.el8_8.1
fixed
RHEL 9
0:1.2.3-16.el9_9.1
fixed
Amazon Linux logo
Amazon Linux Releases
Amazon Package
Release
libXtst
Amazon Linux 2
0:1.2.3-1.amzn2.0.3
fixed
Amazon Linux 2023
0:1.2.5-1.amzn2023.0.2
fixed
libXtst-debuginfo
Amazon Linux 2
0:1.2.3-1.amzn2.0.3
fixed
Amazon Linux 2023
0:1.2.5-1.amzn2023.0.2
fixed
libXtst-debugsource
Amazon Linux 2023
0:1.2.5-1.amzn2023.0.2
fixed
libXtst-devel
Amazon Linux 2
0:1.2.3-1.amzn2.0.3
fixed
Amazon Linux 2023
0:1.2.5-1.amzn2023.0.2
fixed
Azure Linux logo
Azure Linux Releases
Azure Package
Release
libXtst
Azure Linux 3.0
0:1.2.6-1.azl3
fixed