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Xorg — security advisories

6 advisorieslatest 2026-06-26⚡ RSS feed

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DSA-6370-1 incus - security update

unknownCVE-2026-50256 CVE-2026-50257 CVE-2026-50258 CVE-2026-50259debian2026-06-26

CVE-2026-50258: Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: stack buffer overflow in xkb key types due to unchecked shift levels

highCVSS 7.8CVE-2026-50258msrc2026-06-09

CVE-2026-50257: Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: use-after-free in misyncdestroyfence()

mediumCVSS 6.6CVE-2026-50257msrc2026-06-09

CVE-2026-50256: Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: stack buffer overflow in font alias resolution due to libxfont2 name length mismatch

highCVSS 7.8CVE-2026-50256msrc2026-06-09

CVE-2026-50260: Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: use-after-free in freecounter()

mediumCVSS 6.6CVE-2026-50260msrc2026-06-09

CVE-2026-50263: Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: use-after-free information disclosure in createsaverwindow()

mediumCVSS 5.5CVE-2026-50263msrc2026-06-09