CVE-2017-8541

HIGH

Microsoft Malware Protection Engine < 1.1.13704.0 - Remote Code Execution via Crafted File Scan

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2017-8541. PoCs published by Google Security Research.

AI-analyzed exploit summary This exploit targets a use-after-free (UAF) vulnerability in JsRuntimeState::setCaller, where the garbage collector fails to mark the saved caller value, leading to a UAF condition. The PoC includes a zip file with a JavaScript payload to trigger the vulnerability.

Description

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-2017-8538 and CVE-2017-8540.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Google Security Research · textdoswindows
https://www.exploit-db.com/exploits/42092

This exploit targets a use-after-free (UAF) vulnerability in JsRuntimeState::setCaller, where the garbage collector fails to mark the saved caller value, leading to a UAF condition. The PoC includes a zip file with a JavaScript payload to trigger the vulnerability.

Classification
Working Poc 90%
Attack Type
Rce
Complexity
Moderate
Reliability
Racy
Target: Microsoft ChakraCore (Edge browser)
No auth needed
Prerequisites: Target must be running a vulnerable version of ChakraCore/Edge
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (4)

Core 4
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/98710
Exploit, Third Party Advisory exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/42092/
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1038571

Scores

CVSS v3 7.8
EPSS 0.5028
EPSS Percentile 98.8%
Attack Vector LOCAL
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Details

CWE
CWE-119
Status published
Products (4)
microsoft/forefront_security
microsoft/malware_protection_engine < 1.1.13704.0
microsoft/windows_defender
Microsoft Corporation/Malware Protection Engine Microsoft Forefront and Microsoft Defender on Microsoft Windows Server 2008 SP2 and R2 SP1, Windows
Published May 26, 2017
Tracked Since Feb 18, 2026