CVE-2016-7951

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Summary

CVECVE-2016-7951
StatePUBLISHED
Assignermicrofocus
Source PriorityCVE Program / NVD first with legacy fallback
Published2016-12-13 20:59:18 UTC
Updated2026-05-06 22:30:45 UTC
DescriptionMultiple integer overflows in X.org libXtst before 1.2.3 allow remote X servers to trigger out-of-bounds memory access operations by leveraging the lack of range checks.

Risk And Classification

Primary CVSS: v3.1 9.8 CRITICAL from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.007060000 probability, percentile 0.722280000 (date 2026-05-11)

Problem Types: CWE-125 | CWE-190 | n/a

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
2.0[email protected]Primary7.5AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial

AV:N/AC:L/Au:N/C:P/I:P/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Fedoraproject Fedora 24 All All All
Operating System Fedoraproject Fedora 25 All All All
Application X Libxtst All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
oss-security - Re: X.Org security advisory: Protocol handling issues in X Window System client libraries af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
oss-security - X.Org security advisory: Protocol handling issues in X Window System client libraries af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
xorg/lib/libXtst - X.org libXtst library. af854a3a-2127-422b-91ae-364da2661108 cgit.freedesktop.org
[SECURITY] Fedora 25 Update: libXtst-1.2.3-1.fc25 - package-announce - Fedora Mailing-Lists af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
X.Org security advisory: Protocol handling issues in X Window System client libraries af854a3a-2127-422b-91ae-364da2661108 lists.x.org
X.Org libXtst CVE-2016-7951 Multiple Integer Overflow Vulnerabilities af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
X Client Library Bugs Let Remote and Local Users Deny Service or Gain Elevated Privileges - SecurityTracker af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com
[SECURITY] Fedora 24 Update: libXtst-1.2.3-1.fc24 - package-announce - Fedora Mailing-Lists af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
[SECURITY] Fedora 24 Update: libXtst-1.2.3-1.fc24 - package-announce - Fedora Mailing-Lists MITRE lists.fedoraproject.org
[SECURITY] Fedora 25 Update: libXtst-1.2.3-1.fc25 - package-announce - Fedora Mailing-Lists MITRE lists.fedoraproject.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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