CVE-2016-3255

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Summary

CVECVE-2016-3255
StatePUBLISHED
Assignermicrosoft
Source PriorityCVE Program / NVD first with legacy fallback
Published2016-07-13 01:59:16 UTC
Updated2026-05-06 22:30:45 UTC
DescriptionMicrosoft .NET Framework 2.0 SP2, 3.5, 3.5.1, 4.5.2, 4.6, and 4.6.1 allows remote attackers to read arbitrary files via XML data containing an external entity declaration in conjunction with an entity reference, related to an XML External Entity (XXE) issue, aka ".NET Information Disclosure Vulnerability."

Risk And Classification

Primary CVSS: v3.0 7.5 HIGH from [email protected]

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Problem Types: CWE-200 | NVD-CWE-Other | n/a

VersionSourceTypeScoreSeverityVector
3.0[email protected]Primary7.5HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
2.0[email protected]Primary5AV:N/AC:L/Au:N/C:P/I:N/A:N

CVSS v3.0 Breakdown

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

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS v2.0 Breakdown

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

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Microsoft .net Framework 2.0 sp2 All All
Application Microsoft .net Framework 3.5 All All All
Application Microsoft .net Framework 3.5.1 All All All
Application Microsoft .net Framework 4.5.2 All All All
Application Microsoft .net Framework 4.6 All All All
Application Microsoft .net Framework 4.6.1 All All All

Vendor Declared Affected Products

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

References

ReferenceSourceLinkTags
Microsoft Security Bulletin MS16-091 - Important | Microsoft Docs af854a3a-2127-422b-91ae-364da2661108 docs.microsoft.com
Microsoft .NET XML External Entity Processing Flaw Lets Remote Users Obtain Potentially Sensitive Information - SecurityTracker af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com
Malformed Request af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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