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XS
Product
X Server
by X.org · last CVE Jul 8, 2026
97
CVEs
0
On KEV
9.8
Max CVSS
0
New 30D
Vulnerabilities97In the news11Timeline
Severity mix
Critical 15High 53Medium 10Low 0
Severity
All severities97Critical15High53Medium10Low0
Exploitation
On CISA KEV0Exploited in the wild0
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Add X Server to your stack to get only the CVEs that touch what you run.

CVECVSSEPSSPublishedSummary · affected versions
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
CVE-2021-4009
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-2021-4008
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-2021-3472
7.8
1%
Apr 26
A flaw was found in xorg-x11-server in versions before 1.20.11
Affected: before 1.20.11
CVE-2020-14360
7.8
0%
Jan 20
A flaw was found in the X.Org Server before version 1.20.10
Affected: before 1.20.10
CVE-2020-25712
7.8
0%
Dec 15
A flaw was found in xorg-x11-server before 1.20.10
Affected: before 1.20.10
CVE-2020-14362
7.8
1%
Sep 15
A flaw was found in X.Org Server before xorg-x11-server 1.20.9
Affected: before 1.20.9
CVE-2020-14361
7.8
1%
Sep 15
A flaw was found in X.Org Server before xorg-x11-server 1.20.9
Affected: before 1.20.9
CVE-2020-14346
7.8
1%
Sep 15
A flaw was found in xorg-x11-server before 1.20.9
Affected: before 1.20.9
CVE-2020-14345
7.8
1%
Sep 15
A flaw was found in X.Org Server before xorg-x11-server 1.20.9
Affected: before 1.20.9
CVE-2019-17624
7.8
4%
Oct 16
"" In X.Org X Server 1.20.4, there is a stack-based buffer overflow in the function XQueryKeymap
Affected: through 1.20.4
CVE-2017-13723
7.8
0%
Oct 10
In X.Org Server (aka xserver and xorg-server) before 1.19.4, a local attacker authenticated to the X server could overflow a global buffer, causing crashes of the X server or…
Affected: through 1.19.3
CVE-2023-6478
7.5
2%
Dec 13
A flaw was found in xorg-server
Affected: before 21.1.10
CVE-2015-3418
7.5
2%
Dec 13
The ProcPutImage function in dix/dispatch.c in X.Org Server (aka xserver and xorg-server) before 1.16.4 allows attackers to cause a denial of service (divide-by-zero and crash)…
Affected: through 1.16.3
CVE-2025-62230
7.3
0%
Oct 30
A flaw was discovered in the X.Org X server’s X Keyboard (Xkb) extension when handling client resource cleanup
Affected: before 21.1.19
CVE-2025-62231
7.3
0%
Oct 30
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
Affected: before 21.1.19
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