CVE-2023-6816

criticalpriority · track · 40EPSS 0.021 · 82 %ileDEEUNLRUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
2.11% (82nd) EPSS
CVSS 9.8 · critical
Is it mine?
108 products
Check your exposure
Who says so?
6 sources
cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-22

A flaw was found in X.Org server. Both DeviceFocusEvent and the XIQueryPointer reply contain a bit for each logical button currently down. Buttons can be arbitrarily mapped to any value up to 255, but the X.Org Server was only allocating space for the device's particular number of buttons, leading to a heap overflow if a bigger value was used.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

  • Fixedxwayland-21.1.4-150400.3.31.1.x86_64 as component of SUSE Linux Enterprise Desktop 15 SP4-LTSSsuse_csaf

    To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

02

cvss

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

9.8
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.8–9.8

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9
v3.17.8highAV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU
v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU
v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · secalert@redhat.com USexploitability 3.9 · impact 5.9
v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)
v3.18.4highCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · SUSE Product Security
v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · NCSC-NL NL
03

ssvc

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

Trackcoordinatorcisa_ssvcUS
04

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-787USprimaryCWE-119USCWE-119US
05

affected products (108)

Products and version ranges known to be affected.

showing 20 of 108
06

advisories (4)

Vendor and ecosystem advisories describing this.

  • NCSC-2024-0414Kwetsbaarheden verholpen in Oracle CommunicationsNL2024-10-17csaf · ncsc_nlNL

    Oracle heeft kwetsbaarheden verholpen in diverse Communications producten en systemen.

  • SUSE-SU-2024:0165-1Security update for xwayland2024-01-19csaf · suse_csafDE

    Security update for xwayland

  • WID-SEC-W-2024-0127X.Org X11: Mehrere SchwachstellenDeutsch2024-01-16csaf · cert_bundDE

    Ein Angreifer kann mehrere Schwachstellen in X.Org X11 ausnutzen, um beliebigen Programmcode auszuführen, Informationen offenzulegen oder einen Denial of Service Zustand herbeizuführen.

  • WID-SEC-W-2024-3195Oracle Communications: Mehrere SchwachstellenDeutsch2024-10-15csaf · cert_bundDE

    Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Oracle Communications ausnutzen, um die Vertraulichkeit, Integrität und Verfügbarkeit zu gefährden.

07

also known as (4)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bducert_bundncsc_nlsuse_csafNVDCVE.orgMITRE
published 2024-01-18modified 2026-06-17
10

references (74)

External citations — patches, advisories, analysis.

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