Red Hat RHEL 8.4 xorg-x11-server Stack Buffer Overflow and Use-After-Free CVEs Fix Advisory (RHSA-2026:36792)

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Security AdvisoryRHSA-2026:36792HighRed Hat

Affected:

xorg-x11-server
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On

Referenced CVEs: CVE-2026-50263 · 5.5 CVE-2026-50262 · 5.5 CVE-2026-50264 · 7.8 CVE-2026-50261 · 7.8 CVE-2026-50260 · 7.8 CVE-2026-50258 · 7.8 CVE-2026-50259 · 7.8 CVE-2026-50256 · 7.8 CVE-2026-50257 · 7.8

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