CVE-2017-8538

Microsoft MsMpEng - Multiple Crashes While Scanning Malformed Files

Severity Score

7.8

*CVSS v3

Exploit Likelihood

65.9%

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The Microsoft Malware Protection Engine running on Microsoft Forefront and Microsoft Defender on Microsoft Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, Windows 10 Gold, 1511, 1607, and 1703, and Windows Server 2016, Microsoft Exchange Server 2013 and 2016, does not properly scan a specially crafted file leading to memory corruption. aka "Microsoft Malware Protection Engine Remote Code Execution Vulnerability", a different vulnerability than CVE-2017-8540 and CVE-2017-8541.

El Motor de Protección de Malware de Microsoft ejecutado en Microsoft Forefront y Microsoft Defender en Microsoft Windows Server 2008 SP2 y R2 SP1, Windows 7 SP1, Windows versión 8.1, Windows Server 2012 versión Gold y R2, Windows RT versión 8.1, Windows 10 versiones Gold, 1511, 1607 y 1703 y Windows Server 2016, Microsoft Exchange Server 2013 y 2016, no analiza apropiadamente un archivo especialmente diseñado conllevando a una corrupción de memoria. también se conoce como "Microsoft Malware Protection Engine Remote Code Execution Vulnerability", una vulnerabilidad diferente de CVE-2017-8540 y CVE-2017-8541.

Through fuzzing, a number of ways to crash the Microsoft MsMpEng service has been been discovered.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2017-05-03 CVE Reserved
2017-05-26 CVE Published
2017-05-27 First Exploit
2024-08-05 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer

CAPEC

References (5)

URL	Tag	Source
http://www.securityfocus.com/bi...	Third Party Advisory
http://www.securitytracker.com/...	Vdb Entry

1 - 2 of 2

URL	Date	SRC
https://packetstorm.news/files/id/142713	2017-05-27
https://www.exploit-db.com/exploits/42081	2024-08-05

1 - 2 of 2

URL	Date	SRC

URL	Date	SRC
https://portal.msrc.microsoft.com/en-US/security-guidance/advis...	2017-08-13

1 - 1 of 1

Affected Vendors, Products, and Versions (42)

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Microsoft Search vendor "Microsoft"	Forefront Security Search vendor "Microsoft" for product "Forefront Security"	-	-	Affected	in	Microsoft Search vendor "Microsoft"	Exchange Server Search vendor "Microsoft" for product "Exchange Server"	2013 Search vendor "Microsoft" for product "Exchange Server" and version "2013"	-	Safe
Microsoft Search vendor "Microsoft"	Forefront Security Search vendor "Microsoft" for product "Forefront Security"	-	-	Affected	in	Microsoft Search vendor "Microsoft"	Exchange Server Search vendor "Microsoft" for product "Exchange Server"	2016 Search vendor "Microsoft" for product "Exchange Server" and version "2016"	-	Safe
Microsoft Search vendor "Microsoft"	Forefront Security Search vendor "Microsoft" for product "Forefront Security"	-	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows 10 Search vendor "Microsoft" for product "Windows 10"	*	-	Safe
Microsoft Search vendor "Microsoft"	Forefront Security Search vendor "Microsoft" for product "Forefront Security"	-	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows 10 Search vendor "Microsoft" for product "Windows 10"	1511 Search vendor "Microsoft" for product "Windows 10" and version "1511"	-	Safe
Microsoft Search vendor "Microsoft"	Forefront Security Search vendor "Microsoft" for product "Forefront Security"	-	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows 10 Search vendor "Microsoft" for product "Windows 10"	1607 Search vendor "Microsoft" for product "Windows 10" and version "1607"	-	Safe
Microsoft Search vendor "Microsoft"	Forefront Security Search vendor "Microsoft" for product "Forefront Security"	-	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows 10 Search vendor "Microsoft" for product "Windows 10"	1703 Search vendor "Microsoft" for product "Windows 10" and version "1703"	-	Safe
Microsoft Search vendor "Microsoft"	Forefront Security Search vendor "Microsoft" for product "Forefront Security"	-	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows 7 Search vendor "Microsoft" for product "Windows 7"	-	sp1	Safe
Microsoft Search vendor "Microsoft"	Forefront Security Search vendor "Microsoft" for product "Forefront Security"	-	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows 8.1 Search vendor "Microsoft" for product "Windows 8.1"	*	-	Safe
Microsoft Search vendor "Microsoft"	Forefront Security Search vendor "Microsoft" for product "Forefront Security"	-	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows Rt 8.1 Search vendor "Microsoft" for product "Windows Rt 8.1"	-	-	Safe
Microsoft Search vendor "Microsoft"	Forefront Security Search vendor "Microsoft" for product "Forefront Security"	-	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows Server 2008 Search vendor "Microsoft" for product "Windows Server 2008"	-	sp2	Safe

1 - 10 of 42