Lucene search
+L
Catalog
Vendors
Products
Timeline
Vulnerabilities
Sources
Documentation
Blog
Glossary
FAQ
Brand assets
Assessment
Agents dashboard
Agent Scanning
API Scanning
Assessment API
Alerts
Email notifications
Webhook notifications
Alerts API
SBOM package analysis
API Reference
Support
Settings
Sign in

xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: stack buffer overflow in XKB SetMap request via mapWidths indexing

🗓️ 25 Jun 2026 13:15:36Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 7 Views

Stack buffer overflow in X.Org X server XKB SetMap via mapWidths indexing; may crash or escalate privileges.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
FreeBSD		xwayland -- Multiple vulnerabilities
1 Jun 202600:00
–freebsd
FreeBSD		xorg-server -- Multiple vulnerabilities
1 Jun 202600:00
–freebsd
ATTACKERKB		CVE-2026-50259
5 Jun 202610:31
–attackerkb
Tenable Nessus		Amazon Linux 2023 : xorg-x11-server-Xwayland, xorg-x11-server-Xwayland-devel (ALAS2023-2026-1789)
8 Jun 202600:00
–nessus
Tenable Nessus		Amazon Linux 2023 : xorg-x11-server-common, xorg-x11-server-devel, xorg-x11-server-source (ALAS2023-2026-1790)
8 Jun 202600:00
–nessus
Tenable Nessus		Amazon Linux 2023 : tigervnc, tigervnc-icons, tigervnc-license (ALAS2023-2026-1892)
22 Jun 202600:00
–nessus
Tenable Nessus		Amazon Linux 2 : xorg-x11-server, --advisory ALAS2-2026-3336 (ALAS-2026-3336)
8 Jun 202600:00
–nessus
Tenable Nessus		Amazon Linux 2 : tigervnc, --advisory ALAS2-2026-3792 (ALAS-2026-3792)
8 Jul 202600:00
–nessus
Tenable Nessus		Alibaba Cloud Linux 3 : 0166: xorg-x11-server (ALINUX3-SA-2026:0166)
1 Jul 202600:00
–nessus
Tenable Nessus		Alibaba Cloud Linux 3 : 0177: tigervnc (ALINUX3-SA-2026:0177)
1 Jul 202600:00
–nessus
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux9.8aarch64tigervnc1.15.0-7.el9_8.2tigervnc-1.15.0-7.el9_8.2.aarch64.rpm
Red Hat Enterprise Linux9.8ppc64letigervnc1.15.0-7.el9_8.2tigervnc-1.15.0-7.el9_8.2.ppc64le.rpm
Red Hat Enterprise Linux9.8s390xtigervnc1.15.0-7.el9_8.2tigervnc-1.15.0-7.el9_8.2.s390x.rpm
Red Hat Enterprise Linux9.8x86_64tigervnc1.15.0-7.el9_8.2tigervnc-1.15.0-7.el9_8.2.x86_64.rpm
Red Hat Enterprise Linux9.8aarch64tigervnc-debuginfo1.15.0-7.el9_8.2tigervnc-debuginfo-1.15.0-7.el9_8.2.aarch64.rpm
Red Hat Enterprise Linux9.8ppc64letigervnc-debuginfo1.15.0-7.el9_8.2tigervnc-debuginfo-1.15.0-7.el9_8.2.ppc64le.rpm
Red Hat Enterprise Linux9.8s390xtigervnc-debuginfo1.15.0-7.el9_8.2tigervnc-debuginfo-1.15.0-7.el9_8.2.s390x.rpm
Red Hat Enterprise Linux9.8x86_64tigervnc-debuginfo1.15.0-7.el9_8.2tigervnc-debuginfo-1.15.0-7.el9_8.2.x86_64.rpm
Red Hat Enterprise Linux9.8aarch64tigervnc-debugsource1.15.0-7.el9_8.2tigervnc-debugsource-1.15.0-7.el9_8.2.aarch64.rpm
Red Hat Enterprise Linux9.8ppc64letigervnc-debugsource1.15.0-7.el9_8.2tigervnc-debugsource-1.15.0-7.el9_8.2.ppc64le.rpm
Rows per page

Data

Build on a solid foundation with Vulners data

We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data

Api

Power your application with Vulners API

The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access

App

Assess and manage vulnerabilities with Vulners tools

Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation

Book a live demo
13 Jul 2026 11:03Current
6.3Medium risk
Vulners AI Score6.3
CVSS 3.17.8
EPSS0.00165
SSVC
CWE-121
X.Org X serverXwaylandBuffer overflowMapWidths indexingPrivilege escalation
7