CVE-2023-6377

highpriority · track · 32EPSS 0.016 · 75 %ileDEEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.57% (75th) EPSS

CVSS 7.8 · high

Is it mine?

71 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

A flaw was found in xorg-server. Querying or changing XKB button actions such as moving from a touchpad to a mouse can result in out-of-bounds memory reads and writes. This may allow local privilege escalation or possible remote code execution in cases where X11 forwarding is involved.

cvss

Technical severity, 0–10. One row per scoring source.

7.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 5.9

v3.17.8highAV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · secalert@redhat.com USexploitability 1.8 · impact 5.9

v3.17.1highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-125USCWE-125USCWE-787US

affected products (71)

Products and version ranges known to be affected.

Amazon Linux 2all versionscert_bundDEcpe:/o:amazon:linux_2:-
Debian Linuxall versionscert_bundDEcpe:/o:debian:debian_linux:-
Fedora Linuxall versionscert_bundDEcpe:/o:fedoraproject:fedora:-
Gentoo Linuxall versionscert_bundDEcpe:/o:gentoo:linux:-
IGEL OSall versionscert_bundDEcpe:/o:igel:os:-
Open Source CentOSall versionscert_bundDEcpe:/o:centos:centos:-
Open Source X.Org X11 <21.1.10all versionscert_bundDE
Open Source Xming <7.7.0.98all versionscert_bundDE
OpenBSD OpenBSD 7.4all versionscert_bundDEcpe:/a:openbsd:openbsd:7.4
Oracle Linuxall versionscert_bundDEcpe:/o:oracle:linux:-
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
Ubuntu Linuxall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:-
Open Source X.Org X11< 21.1.10cert_bundDE
Open Source Xming< 7.7.0.98cert_bundDE
Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION< 0:1.1.0-25.el6_10.14enisa_euvdEU
Red Hat Red Hat Enterprise Linux 7< 0:1.20.4-25.el7_9enisa_euvdEU
Red Hat Red Hat Enterprise Linux 7< 0:1.8.0-28.el7_9enisa_euvdEU
Red Hat Red Hat Enterprise Linux 8< 0:1.13.1-2.el8_9.4enisa_euvdEU
Red Hat Red Hat Enterprise Linux 8< 0:1.20.11-22.el8enisa_euvdEU

showing 20 of 71

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-3131X.Org X11: Mehrere SchwachstellenDeutsch2023-12-12csaf · cert_bundDE
Ein lokaler Angreifer kann mehrere Schwachstellen in X.Org X11 und Xming ausnutzen, um seine Privilegien zu erhöhen oder Informationen offenzulegen.
WID-SEC-W-2024-1248Xerox FreeFlow Print Server: Mehrere SchwachstellenDeutsch2024-05-28csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Xerox FreeFlow Print Server ausnutzen, um die Vertraulichkeit, Verfügbarkeit und Integrität des Systems zu gefährden

also known as (6)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund NVD CVE.org MITRE

published 2023-12-13modified 2026-06-23

references (85)

External citations — patches, advisories, analysis.

scry

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