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X.Org X.Org X ServerX.Org Server CheckKeyTypes Buffer Overflow Privilege Escalation Vulnerability

Risk 46
First published (updated )
Advisory
ZDI-26-337

oss-secFW: X.Org Security Advisory: multiple security issues X.Org X server and Xwayland

First published (updated )
https://seclists.org/oss-sec/2026/q2/821

oss-secFW: X.Org Security Advisory: multiple security issues X.Org X server and Xwayland

First published (updated )
https://seclists.org/oss-sec/2026/q2/775

oss-secFwd: X.Org Security Advisory: multiple security issues X.Org X server and Xwayland

First published (updated )
https://seclists.org/oss-sec/2026/q2/142

X.Org X.Org X ServerXorg: xwayland: x.org x server: information exposure and denial of service via out-of-bounds memory access

Risk 74
Severity
7.8
First published (updated )
CVE-2026-34003
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X.Org X.Org X ServerOut-of-bounds memory access vulnerability in the XKB key types request validation of the X.Org X ser…

Risk 33
Severity
7
First published (updated )
REDHAT-BUG-2451113

redhat Enterprise LinuxXorg: xwayland: x.org x server: information disclosure or denial of service via out-of-bounds read in xkb modifier map handling

Risk 70
Severity
9.1
First published (updated )
CVE-2026-34002

X.Org X.Org X ServerOut-of-bounds Read vulnerability in the XKB modifier map request handling of the X.Org X server. The…

Risk 19
Severity
4
First published (updated )
REDHAT-BUG-2451112

X.Org X.Org X ServerXorg: xwayland: x.org x server: use-after-free vulnerability leads to server crash and potential memory corruption

Risk 74
Severity
7.8
First published (updated )
CVE-2026-34001

X.Org X.Org X ServerUse After Free

Risk 33
Severity
7
First published (updated )
REDHAT-BUG-2451109
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redhat Enterprise LinuxXwayland: xorg: x.org x server: information disclosure and denial of service via out-of-bounds read in xkb geometry processing.

Risk 70
Severity
9.1
First published (updated )
CVE-2026-34000

X.Org X.Org X ServerOut-of-bounds Read vulnerability in the XKB geometry processing of the X.Org X server. The issue is …

Risk 19
Severity
4
First published (updated )
REDHAT-BUG-2451107

X.Org X.Org X ServerXorg: xwayland: x.org x server: denial of service via integer underflow in xkb compatibility map handling

Risk 74
Severity
7.8
First published (updated )
CVE-2026-33999

X.Org X.Org X ServerInteger Underflow (Wraparound) vulnerability in the XKB compatibility map handling of the X.Org X se…

Risk 33
Severity
7
First published (updated )
REDHAT-BUG-2451106

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