CVE-2017-8759

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Summary

CVECVE-2017-8759
StatePUBLISHED
Assignermicrosoft
Source PriorityCVE Program / NVD first with legacy fallback
Published2017-09-13 01:29:12 UTC
Updated2026-04-22 13:48:29 UTC
DescriptionMicrosoft .NET Framework 2.0, 3.5, 3.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2 and 4.7 allow an attacker to execute code remotely via a malicious document or application, aka ".NET Framework Remote Code Execution Vulnerability."

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from [email protected]

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

EPSS: 0.886980000 probability, percentile 0.997610000 (date 2026-07-22)

CISA KEV: Listed on 2021-11-03; due 2022-05-03; ransomware use Unknown

Problem Types: NVD-CWE-noinfo | CWE-94 | Remote Code Execution | CWE-94 CWE-94 Improper Control of Generation of Code ('Code Injection')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
3.1ADPDECLARED7.8HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
2.0[email protected]Primary9.3AV:N/AC:M/Au:N/C:C/I:C/A:C

CVSS v3.1 Breakdown

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

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

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Medium
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete

AV:N/AC:M/Au:N/C:C/I:C/A:C

CISA Known Exploited Vulnerability

VendorMicrosoft
Product.NET Framework
NameMicrosoft .NET Framework Remote Code Execution Vulnerability
Required ActionApply updates per vendor instructions.
Noteshttps://nvd.nist.gov/vuln/detail/CVE-2017-8759

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Microsoft .net Framework 3.5.1 All All All
Application Microsoft .net Framework 4.5.2 All All All
Operating System Microsoft Windows 7 - sp1 All All
Operating System Microsoft Windows 8.1 - All All All
Operating System Microsoft Windows Rt 8.1 - All All All
Operating System Microsoft Windows Server 2008 - sp2 All All
Operating System Microsoft Windows Server 2008 r2 sp1 All All
Operating System Microsoft Windows Server 2012 - All All All
Operating System Microsoft Windows Server 2012 r2 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Microsoft Corporation Microsoft .NET Framework affected Microsoft .NET Framework 2.0, 3.5, 3.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2 and 4.7 Not specified

References

ReferenceSourceLinkTags
Microsoft Windows .NET Framework CVE-2017-8759 Remote Code Execution Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com Broken Link, Third Party Advisory, VDB Entry
GitHub - nccgroup/CVE-2017-8759: NCC Group's analysis and exploitation of CVE-2017-8759 along with further refinements af854a3a-2127-422b-91ae-364da2661108 github.com Exploit, Third Party Advisory
portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8759 af854a3a-2127-422b-91ae-364da2661108 portal.msrc.microsoft.com Patch, Vendor Advisory
GitHub - bhdresh/CVE-2017-8759: Exploit toolkit CVE-2017-8759 - v1.0 is a handy python script which provides pentesters and security researchers a quick and effective way to test Microsoft .NET Framework RCE. It could generate a malicious RTF file and deliver metasploit / meterpreter / other payload to victim without any complex configuration. af854a3a-2127-422b-91ae-364da2661108 github.com Exploit, Third Party Advisory
Microsoft Windows .NET Framework - Remote Code Execution af854a3a-2127-422b-91ae-364da2661108 www.exploit-db.com Third Party Advisory, VDB Entry
www.cisa.gov/known-exploited-vulnerabilities-catalog 134c704f-9b21-4f2e-91b3-4a467353bcc0 www.cisa.gov US Government Resource
GitHub - GitHubAssessments/CVE_Assessments_01_2020 af854a3a-2127-422b-91ae-364da2661108 github.com Third Party Advisory
Microsoft .NET File Processing Flaw Lets Remote Users Execute Arbitrary Code - SecurityTracker af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com Broken Link, Third Party Advisory, VDB Entry
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
CISA Known Exploited Vulnerabilities catalog CISA www.cisa.gov kev

Additional Advisory Data

SourceTimeEvent
ADP2021-11-03T00:00:00.000ZCVE-2017-8759 added to CISA KEV

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