XS
Product
X Server
by X.org · last CVE Jul 8, 2026
97
CVEs
0
On KEV
9.8
Max CVSS
0
New 30D
Severity mix
Critical 15High 53Medium 10Low 0
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CVECVSSEPSSPublishedSummary · affected versions
CVE-2023-6816
9.8
2%
Jan 18
A flaw was found in X.Org server
Affected: before 21.1.11
CVE-2017-12187
9.8
3%
Jan 24
xorg-x11-server before 1.19.5 was missing length validation in RENDER extension allowing malicious X client to cause X server to crash or possibly execute arbitrary code
Affected: before 1.19.5
CVE-2017-12186
9.8
4%
Jan 24
xorg-x11-server before 1.19.5 was missing length validation in X-Resource extension allowing malicious X client to cause X server to crash or possibly execute arbitrary code
Affected: before 1.19.5
CVE-2017-12185
9.8
4%
Jan 24
xorg-x11-server before 1.19.5 was missing length validation in MIT-SCREEN-SAVER extension allowing malicious X client to cause X server to crash or possibly execute arbitrary code
Affected: before 1.19.5
CVE-2017-12184
9.8
4%
Jan 24
xorg-x11-server before 1.19.5 was missing length validation in XINERAMA extension allowing malicious X client to cause X server to crash or possibly execute arbitrary code
Affected: before 1.19.5
CVE-2017-12183
9.8
4%
Jan 24
xorg-x11-server before 1.19.5 was missing length validation in XFIXES extension allowing malicious X client to cause X server to crash or possibly execute arbitrary code
Affected: before 1.19.5
CVE-2017-12182
9.8
4%
Jan 24
xorg-x11-server before 1.19.5 was missing length validation in XFree86 DRI extension allowing malicious X client to cause X server to crash or possibly execute arbitrary code
Affected: before 1.19.5
CVE-2017-12181
9.8
4%
Jan 24
xorg-x11-server before 1.19.5 was missing length validation in XFree86 DGA extension allowing malicious X client to cause X server to crash or possibly execute arbitrary code
Affected: before 1.19.5
CVE-2017-12180
9.8
4%
Jan 24
xorg-x11-server before 1.19.5 was missing length validation in XFree86 VidModeExtension allowing malicious X client to cause X server to crash or possibly execute arbitrary code
Affected: before 1.19.5
CVE-2017-12179
9.8
4%
Jan 24
xorg-x11-server before 1.19.5 was vulnerable to integer overflow in (S)ProcXIBarrierReleasePointer functions allowing malicious X client to cause X server to crash or possibly…
Affected: before 1.19.5
CVE-2017-12178
9.8
4%
Jan 24
xorg-x11-server before 1.19.5 had wrong extra length check in ProcXIChangeHierarchy function allowing malicious X client to cause X server to crash or possibly execute arbitrary…
Affected: before 1.19.5
CVE-2017-12177
9.8
4%
Jan 24
xorg-x11-server before 1.19.5 was vulnerable to integer overflow in ProcDbeGetVisualInfo function allowing malicious X client to cause X server to crash or possibly execute…
Affected: before 1.19.5
CVE-2017-12176
9.8
4%
Jan 24
xorg-x11-server before 1.19.5 was missing extra length validation in ProcEstablishConnection function allowing malicious X client to cause X server to crash or possibly execute…
Affected: before 1.19.5
CVE-2026-34002
9.1
0%
May 5
Xorg: xwayland: x.org x server: information disclosure or denial of service via out-of-bounds read in xkb modifier map handling
Affected: All versions, or not specified
CVE-2026-34000
9.1
0%
May 5
Xwayland: xorg: x.org x server: information disclosure and denial of service via out-of-bounds read in xkb geometry processing.
Affected: All versions, or not specified
CVE-2022-46344
8.8
3%
Dec 14
A vulnerability was found in X.Org
Affected: 1.20.4
CVE-2022-46343
8.8
3%
Dec 14
A vulnerability was found in X.Org
Affected: 1.20.4
CVE-2022-46342
8.8
1%
Dec 14
A vulnerability was found in X.Org
Affected: 1.20.4
CVE-2022-46341
8.8
3%
Dec 14
A vulnerability was found in X.Org
Affected: 1.20.4
CVE-2022-46340
8.8
3%
Dec 14
A vulnerability was found in X.Org
Affected: 1.20.4
CVE-2022-3550
8.8
2%
Oct 17
X.org Server xkb.c _GetCountedString buffer overflow
Affected: before 21.1.6
CVE-2017-10971
8.8
4%
Jul 6
In the X.Org X server before 2017-06-19, a user authenticated to an X Session could crash or execute code in the context of the X Server by exploiting a stack overflow in the…
Affected: through 1.19.3
CVE-2026-55999
7.8
0%
Jul 8
xorg-server / xwayland glamor font atlas Heap Buffer Overflow
Affected: before 21.2.24
CVE-2026-56000
7.8
0%
Jul 8
xorg-x11-server / xwayland GLX contextTags Use-After-Free in CommonMakeCurrent()
Affected: before 21.2.24
CVE-2026-50264
7.8
0%
Jun 5
Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: out-of-bounds heap write in dri2 drigetbuffers/drigetbufferswithformat
Affected: before 21.1.23
CVE-2026-50261
7.8
0%
Jun 5
Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: use-after-free in syncchangecounter()
Affected: before 21.1.23
CVE-2026-50260
7.8
0%
Jun 5
Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: use-after-free in freecounter()
Affected: before 21.1.23
CVE-2026-50258
7.8
0%
Jun 5
Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: stack buffer overflow in xkb key types due to unchecked shift levels
Affected: before 21.1.23
CVE-2026-50259
7.8
0%
Jun 5
Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: stack buffer overflow in xkb setmap request via mapwidths indexing
Affected: before 21.1.23
CVE-2026-50256
7.8
0%
Jun 5
Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: stack buffer overflow in font alias resolution due to libxfont2 name length mismatch
Affected: before 21.1.23
CVE-2026-50257
7.8
0%
Jun 5
Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: use-after-free in misyncdestroyfence()
Affected: before 21.1.23
CVE-2025-26601
7.8
0%
Feb 25
A use-after-free flaw was found in X.Org and Xwayland
Affected: before 21.1.16
CVE-2025-26600
7.8
0%
Feb 25
A use-after-free flaw was found in X.Org and Xwayland
Affected: before 21.1.16
CVE-2025-26599
7.8
0%
Feb 25
An access to an uninitialized pointer flaw was found in X.Org and Xwayland
Affected: before 21.1.16
CVE-2025-26598
7.8
0%
Feb 25
An out-of-bounds write flaw was found in X.Org and Xwayland
Affected: before 21.1.16
CVE-2025-26597
7.8
0%
Feb 25
A buffer overflow flaw was found in X.Org and Xwayland
Affected: before 21.1.16
CVE-2025-26596
7.8
0%
Feb 25
A heap overflow flaw was found in X.Org and Xwayland
Affected: before 21.1.16
CVE-2025-26595
7.8
0%
Feb 25
A buffer overflow flaw was found in X.Org and Xwayland
Affected: before 21.1.16
CVE-2025-26594
7.8
0%
Feb 25
A use-after-free flaw was found in X.Org and Xwayland
Affected: before 21.1.16
CVE-2024-0229
7.8
1%
Feb 9
An out-of-bounds memory access flaw was found in the X.Org server
Affected: before 21.1.11
CVE-2024-0409
7.8
0%
Jan 18
A flaw was found in the X.Org server
Affected: before 21.1.11
CVE-2023-6377
7.8
2%
Dec 13
A flaw was found in xorg-server
Affected: before 21.1.10
CVE-2023-5367
7.8
1%
Oct 25
A out-of-bounds write flaw was found in the xorg-x11-server
Affected: before 21.1.9
CVE-2023-1393
7.8
0%
Mar 30
A flaw was found in X.Org Server Overlay Window
Affected: before 21.1.8
CVE-2023-0494
7.8
1%
Mar 27
A vulnerability was found in X.Org
Affected: before 21.1.7
CVE-2022-4283
7.8
1%
Dec 14
A vulnerability was found in X.Org
Affected: 1.20.4
CVE-2022-2320
7.8
1%
Sep 1
A flaw was found in the Xorg-x11-server
Affected: 21.1.0
CVE-2022-2319
7.8
0%
Sep 1
A flaw was found in the Xorg-x11-server
Affected: 21.1.0
CVE-2021-4011
7.8
1%
Dec 17
A flaw was found in xorg-x11-server in versions before 21.1.2 and before 1.20.14
Affected: before 1.20.14; 21.1.0; 21.1.1
CVE-2021-4010
7.8
1%
Dec 17
A flaw was found in xorg-x11-server in versions before 21.1.2 and before 1.20.14
Affected: before 1.20.14; 21.1.0; 21.1.1
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