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X.org Server vulnerabilities
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x.org xwayland, the xorg project xorg-x11-server +1 more
X.Org Server XInput2 PassiveUngrabDevice Out-of-Bounds Write
CVE-2026-93523
Fix available
7.8 High
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x.org xwayland, the xorg project xorg-x11-server +1 more
X.Org Server Glamor CopyArea Heap Buffer Overflow
CVE-2026-93522
Fix available
7.8 High
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x.org xwayland, the xorg project xorg-x11-server +1 more
X.Org Server RandR ChangeProviderProperty Heap Buffer Overflow
CVE-2026-93521
Fix available
7.8 High
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x.org xwayland, the xorg project xorg-x11-server +1 more
.Org Server XInput Passive Grab Use-After-Free
CVE-2026-93516
Fix available
5.5 Medium
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the xorg project xorg-x11-server, x.org xwayland +1 more
X.Org Server XKB SetGeometry TextDoodad Double Free
CVE-2026-88812
Fix available
7.8 High
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x.org xwayland, the xorg project xorg-x11-server +1 more
X.Org Server GestureBuildSprite Use-After-Free
CVE-2026-93536
Fix available
5.3 Medium
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x.org xwayland, the xorg project xorg-x11-server +1 more
X.Org Server XKB SetMap Key Width/Action Count Desync Out-Of-Bounds Read
CVE-2026-93524
Fix available
6.9 Medium
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x.org xwayland, the xorg project xorg-x11-server +1 more
X.Org Server XKB ChangeKeycodeRange Heap Out-of-Bounds Write
CVE-2026-93520
Fix available
7.8 High
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x.org xwayland, the xorg project xorg-x11-server +1 more
X.Org Server XFixes Pointer Barrier Event List Buffer Overflow
CVE-2026-93519
Fix available
7.8 High
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x.org xwayland, the xorg project xorg-x11-server +1 more
X.Org Server XKB ResizeKeyType Numeric Truncation
CVE-2026-93518
Fix available
7.8 High
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the xorg project xorg-x11-server, x.org xwayland +1 more
.Org Server Present Extension Use-After-Free
CVE-2026-93515
Fix available
6.8 Medium
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the xorg project xorg-x11-server, x.org x server, xwayland +2 more
xorg-x11-server / xwayland GLX contextTags Use-After-Free in CommonMakeCurrent()
CVE-2026-56000
Fix available
9.0 Critical
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x.org xorg-server, xwayland, x server +2 more
xorg-server / xwayland glamor font atlas Heap Buffer Overflow
CVE-2026-55999
Fix available
8.5 High
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x.org x server, xwayland, red hat enterprise linux 10 +16 more +18 more
Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: use-after-free information disclosure in createsaverwindow()
CVE-2026-50263
Fix available
5.5 Medium
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x.org x server, xwayland, red hat enterprise linux 10 +16 more +18 more
Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: out-of-bounds read/write in glx changedrawableattributes
CVE-2026-50262
Fix available
5.5 Medium
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x.org x server, xwayland, red hat enterprise linux 10 +16 more +18 more
Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: out-of-bounds heap write in dri2 drigetbuffers/drigetbufferswithformat
CVE-2026-50264
Fix available
7.8 High
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x.org x server, xwayland, red hat enterprise linux 10 +16 more +18 more
Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: use-after-free in syncchangecounter()
CVE-2026-50261
Fix available
7.8 High
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x.org x server, xwayland, red hat enterprise linux 10 +16 more +18 more
Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: use-after-free in freecounter()
CVE-2026-50260
Fix available
7.8 High
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x.org x server, xwayland, red hat enterprise linux 10 +16 more +18 more
Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: stack buffer overflow in xkb setmap request via mapwidths indexing
CVE-2026-50259
Fix available
7.8 High
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x.org x server, xwayland, red hat enterprise linux 10 +16 more +18 more
Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: stack buffer overflow in xkb key types due to unchecked shift levels
CVE-2026-50258
Fix available
7.8 High
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x.org x server, xwayland, red hat enterprise linux 10 +16 more +18 more
Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: use-after-free in misyncdestroyfence()
CVE-2026-50257
Fix available
7.8 High
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x.org x server, xwayland, red hat enterprise linux 10 +16 more +18 more
Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: stack buffer overflow in font alias resolution due to libxfont2 name length mismatch
CVE-2026-50256
Fix available
7.8 High
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x.org x server, red hat enterprise linux 10, enterprise linux 10.0 extended update support +18 more +20 more
Xorg: xwayland: x.org x server: information disclosure or denial of service via out-of-bounds read in xkb modifier map handling
CVE-2026-34002
Fix available
6.1 Medium
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x.org x server, red hat enterprise linux 10, enterprise linux 10.0 extended update support +18 more +20 more
Xwayland: xorg: x.org x server: information disclosure and denial of service via out-of-bounds read in xkb geometry processing.
CVE-2026-34000
Fix available
6.1 Medium
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x.org x server, debian linux, ibm aix +25 more +27 more
Xorg: xmayland: value overflow in xkbsetcompatmap()
CVE-2025-62231
Fix available
7.3 High
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x.org x server, xwayland, debian linux +25 more +27 more
Xorg: xwayland: use-after-free in xkb client resource removal
CVE-2025-62230
Fix available
7.3 High
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x.org x server
In X.Org X server 20.11 through 21.1.16, when a client application uses easystroke for mouse...
CVE-2022-49737
Fix available
7.7 High
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x.org xwayland, red hat enterprise linux 10, enterprise linux 6 +18 more +20 more
Xorg: xwayland: use-after-free in syncinittrigger()
CVE-2025-26601
Fix available
7.8 High
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x.org xwayland, red hat enterprise linux 10, enterprise linux 6 +18 more +20 more
Xorg: xwayland: use-after-free in playreleasedevents()
CVE-2025-26600
Fix available
7.8 High
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x.org xwayland, red hat enterprise linux 10, enterprise linux 6 +18 more +20 more
Xorg: xwayland: use of uninitialized pointer in compredirectwindow()
CVE-2025-26599
Fix available
7.8 High
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x.org xwayland, red hat enterprise linux 10, enterprise linux 6 +18 more +20 more
Xorg: xwayland: out-of-bounds write in createpointerbarrierclient()
CVE-2025-26598
Fix available
7.8 High
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x.org xwayland, red hat enterprise linux 10, enterprise linux 6 +18 more +20 more
Xorg: xwayland: buffer overflow in xkbchangetypesofkey()
CVE-2025-26597
Fix available
7.8 High
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x.org xwayland, red hat enterprise linux 10, enterprise linux 6 +18 more +20 more
Xorg: xwayland: heap overflow in xkbwritekeysyms()
CVE-2025-26596
Fix available
7.8 High
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x.org xwayland, red hat enterprise linux 10, enterprise linux 6 +18 more +20 more
Xorg: xwayland: buffer overflow in xkbvmodmasktext()
CVE-2025-26595
Fix available
7.8 High
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x.org x server, xwayland, red hat enterprise linux 10 +18 more +20 more
X.org: xwayland: use-after-free of the root cursor
CVE-2025-26594
Fix available
7.8 High
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x.org xwayland, fedoraproject fedora, red hat enterprise linux 6 +13 more +15 more
Xorg-x11-server: selinux context corruption
CVE-2024-0409
Fix available
7.8 High
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fedoraproject fedora, red hat enterprise linux 6, enterprise linux 7 +13 more +15 more
Xorg-x11-server: selinux unlabeled glx pbuffer
CVE-2024-0408
Fix available
5.5 Medium
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fedoraproject fedora, red hat enterprise linux 6, enterprise linux 6 extended lifecycle support - extension +20 more +22 more
Xorg-x11-server: reattaching to different master device may lead to out-of-bounds memory access
CVE-2024-0229
Fix available
7.8 High
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debian linux, fedoraproject fedora, red hat enterprise linux 6 +19 more +21 more
Xorg-x11-server: heap buffer overflow in devicefocusevent and procxiquerypointer
CVE-2023-6816
Fix available
9.8 Critical
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debian linux, red hat enterprise linux 6, enterprise linux 6 extended lifecycle support - extension +17 more +19 more
Xorg-x11-server: out-of-bounds memory read in rrchangeoutputproperty and rrchangeproviderproperty
CVE-2023-6478
Fix available
7.6 High
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debian linux, red hat enterprise linux 6, enterprise linux 6 extended lifecycle support - extension +17 more +19 more
Xorg-x11-server: out-of-bounds memory reads/writes in xkb button actions
CVE-2023-6377
Fix available
7.8 High
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red hat enterprise linux 6, enterprise linux 7, enterprise linux 8 +3 more +5 more
Xorg-x11-server: use-after-free bug in damagedestroy
CVE-2023-5574
Fix available
7.0 High
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x.org x server, debian linux, fedoraproject fedora +6 more +8 more
Xorg-x11-server: use-after-free bug in destroywindow
CVE-2023-5380
Fix available
4.7 Medium
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debian linux, fedoraproject fedora, red hat enterprise linux 6 +25 more +27 more
Xorg-x11-server: out-of-bounds write in xichangedeviceproperty/rrchangeoutputproperty
CVE-2023-5367
Fix available
7.8 High
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fedoraproject fedora, x.org x server +1 more
A flaw was found in X.Org Server Overlay Window. A Use-After-Free may lead to local privilege...
CVE-2023-1393
Fix available
7.8 High
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x.org x server, fedoraproject fedora, redhat enterprise linux +16 more +18 more
A vulnerability was found in X.Org. This issue occurs due to a dangling pointer in...
CVE-2023-0494
Fix available
7.8 High
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x.org x server, debian linux, fedoraproject fedora +1 more +3 more
A vulnerability was found in X.Org. This security flaw occurs because the handler for the...
CVE-2022-46344
Fix available
8.8 High
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x.org x server, debian linux, fedoraproject fedora +1 more +3 more
A vulnerability was found in X.Org. This security flaw occurs because the handler for the...
CVE-2022-46343
Fix available
8.8 High
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debian linux, fedoraproject fedora, the xorg project xorg-x11-server +1 more +3 more
A vulnerability was found in X.Org. This security flaw occurs because the handler for the...
CVE-2022-46342
Fix available
8.8 High
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x.org x server, debian linux, fedoraproject fedora +1 more +3 more
A vulnerability was found in X.Org. This security flaw occurs because the handler for the...
CVE-2022-46341
Fix available
8.8 High
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