HIGHCVSS v3.1 7.8Actively exploited · CISA KEV since 2022-03-03Vulnerability
CVE-2017-8540
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".
Properties
- Euvd product
- Malware Protection Engine
- Vulnerability name
- Microsoft Malware Protection Engine Improper Restriction of Operations Vulnerability
- First seen
- 2025-10-21T23:55:40+00:00
- Cvss score
- 7.8
- Epss score
- 0.71874
- Last seen
- 2026-10-19T12:00:27+00:00
- Due date
- 2022-03-24
- Euvd assigner
- microsoft
- Retrieved at
- 2026-10-21T01:24:47+00:00
- Exploited euvd since
- 2022-03-03T00:00:00+00:00
- Src batch id
- epss_history-20261020T103617Z-728ddd
- Source url
- https://epss.empiricalsecurity.com/epss_scores-2026-10-19.csv.gz
- Date added
- 2022-03-03
- Score
- 7.8
- Euvd base score version
- 3.1
- Fetched at
- 2026-10-20T10:36:20+00:00
- Euvd vendor
- Microsoft Corporation
- Cvss vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- In Signal since
- initial import (Sep 2026)
- Euvd base score
- 7.8
Related Entities (26 · showing 23)
AFFECTS_PRODUCT (23 · showing 20)
DESCRIBES (1)
HAS_WEAKNESS (1)
INVOLVES (1)
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