Fixed packages 9
| Release | Package | Fixed in |
|---|---|---|
| Red Hat · RHEL 8.6 AUS rhel_aus:8.6::appstream | xorg-x11-server-Xwayland | 0:21.1.3-2.el8_6.5 |
| Red Hat · RHEL 8.6 AUS rhel_aus:8.6::appstream | xorg-x11-server-Xwayland-debuginfo | 0:21.1.3-2.el8_6.5 |
| Red Hat · RHEL 8.6 AUS rhel_aus:8.6::appstream | xorg-x11-server-Xwayland-debugsource | 0:21.1.3-2.el8_6.5 |
| Red Hat · RHEL 8.6 E4S rhel_e4s:8.6::appstream | xorg-x11-server-Xwayland | 0:21.1.3-2.el8_6.5 |
| Red Hat · RHEL 8.6 E4S rhel_e4s:8.6::appstream | xorg-x11-server-Xwayland-debuginfo | 0:21.1.3-2.el8_6.5 |
| Red Hat · RHEL 8.6 E4S rhel_e4s:8.6::appstream | xorg-x11-server-Xwayland-debugsource | 0:21.1.3-2.el8_6.5 |
| Red Hat · RHEL 8.6 TUS rhel_tus:8.6::appstream | xorg-x11-server-Xwayland | 0:21.1.3-2.el8_6.5 |
| Red Hat · RHEL 8.6 TUS rhel_tus:8.6::appstream | xorg-x11-server-Xwayland-debuginfo | 0:21.1.3-2.el8_6.5 |
| Red Hat · RHEL 8.6 TUS rhel_tus:8.6::appstream | xorg-x11-server-Xwayland-debugsource | 0:21.1.3-2.el8_6.5 |
Vulnerabilities 3
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High 7.3
Xorg: xmayland: use-after-free in xpresentnotify structure creation
A flaw was found in the X.Org X server and Xwayland when processing X11 Present extension notifications. Improper error handling during notification creation can leave dangling pointers that lead to a use-after-free condition. This can cause memory corruption…
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High 7.3
Xorg: xwayland: use-after-free in xkb client resource removal
A flaw was discovered in the X.Org X server’s X Keyboard (Xkb) extension when handling client resource cleanup. The software frees certain data structures without properly detaching related resources, leading to a use-after-free condition. This can cause memo…
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High 7.3
Xorg: xmayland: value overflow in xkbsetcompatmap()
A flaw was identified in the X.Org X server’s X Keyboard (Xkb) extension where improper bounds checking in the XkbSetCompatMap() function can cause an unsigned short overflow. If an attacker sends specially crafted input data, the value calculation may overfl…
References
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article
https://access.redhat.com/security/updates/classification/#moderate
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report
https://bugzilla.redhat.com/show_bug.cgi?id=2402649
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report
https://bugzilla.redhat.com/show_bug.cgi?id=2402653
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report
https://bugzilla.redhat.com/show_bug.cgi?id=2402660
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advisory
https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_0035.json
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report
https://access.redhat.com/security/cve/CVE-2025-62229
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advisory
https://www.cve.org/CVERecord?id=CVE-2025-62229
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advisory
https://nvd.nist.gov/vuln/detail/CVE-2025-62229
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article
https://lists.x.org/archives/xorg-announce/2025-October/003635.html
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report
https://access.redhat.com/security/cve/CVE-2025-62230
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advisory
https://www.cve.org/CVERecord?id=CVE-2025-62230
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advisory
https://nvd.nist.gov/vuln/detail/CVE-2025-62230
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report
https://access.redhat.com/security/cve/CVE-2025-62231
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advisory
https://www.cve.org/CVERecord?id=CVE-2025-62231
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advisory
https://nvd.nist.gov/vuln/detail/CVE-2025-62231