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Rocky Linux 9 RLSA-2026-38486 xorg-x11-server Important Buffer Overflow

rocky
Calendar Grey July 14, 2026
Rockylinux Esm H88
A new important security update for xorg-x11-server addresses a buffer overflow risk in Rocky Linux 9.
Important: xorg-x11-server security update

Summary

An update is available for xorg-x11-server. This update affects Rocky Linux 9. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list


Topics%20covered

Topics Covered

security advisory buffer overflow remote access important Xorg X11 Server rocky linux

RPMs

xorg-x11-server-0:1.20.11-34.el9_8.3.src.rpm

xorg-x11-server-common-0:1.20.11-34.el9_8.3.aarch64.rpm

xorg-x11-server-common-0:1.20.11-34.el9_8.3.ppc64le.rpm

xorg-x11-server-common-0:1.20.11-34.el9_8.3.s390x.rpm

xorg-x11-server-common-0:1.20.11-34.el9_8.3.x86_64.rpm

xorg-x11-server-debuginfo-0:1.20.11-34.el9_8.3.aarch64.rpm

xorg-x11-server-debuginfo-0:1.20.11-34.el9_8.3.ppc64le.rpm

xorg-x11-server-debuginfo-0:1.20.11-34.el9_8.3.s390x.rpm

xorg-x11-server-debuginfo-0:1.20.11-34.el9_8.3.x86_64.rpm

xorg-x11-server-debugsource-0:1.20.11-34.el9_8.3.aarch64.rpm

xorg-x11-server-debugsource-0:1.20.11-34.el9_8.3.i686.rpm

xorg-x11-server-debugsource-0:1.20.11-34.el9_8.3.ppc64le.rpm

xorg-x11-server-debugsource-0:1.20.11-34.el9_8.3.s390x.rpm

xorg-x11-server-debugsource-0:1.20.11-34.el9_8.3.x86_64.rpm

xorg-x11-server-devel-0:1.20.11-34.el9_8.3.aarch64.rpm

xorg-x11-server-devel-0:1.20.11-34.el9_8.3.i686.rpm

xorg-x11-server-devel-0:1.20.11-34.el9_8.3.ppc64le.rpm

xorg-x11-server-devel-0:1.20.11-34.el9_8.3.s390x.rpm

Read the Full Advisory

References

No references

CVES

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-55999

Severity
important

Name: RLSA-2026:38486
Affected Products: Rocky Linux 9

Fixes

https://bugzilla.redhat.com/show_bug.cgi?id=2496165


Topics%20covered

Topics Covered

security advisory buffer overflow remote access important Xorg X11 Server rocky linux

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