CVE-2017-8540
Microsoft Malware Protection Engine Improper Restriction of Operations Vulnerability
IN CISA KEV
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".
- Vendor
- Microsoft
- Product
- Malware Protection Engine
- CVSS
- No score recorded (no NVD record loaded for this entry)
- CWE
- CWE-119
- Published
- Not recorded
- NVD modified
- Not recorded
CISA KEV
- Date added
- 2022-03-03
- Due date
- 2022-03-24
- Ransomware use
- Unknown
- Required action
- Apply updates per vendor instructions.
EPSS
71.9% chance of exploitation in the next 30 days (percentile 99th)
FIRST EPSS, updated 17 Oct 2026. About EPSS
CVSS is severity, EPSS is likelihood, KEV means already exploited. EPSS is a statistical probability, not a certainty: a low score does not make a bug safe, and a high one does not prove it is being exploited.
Data last updated 18 Oct 2026. Sources: NVD API 2.0, CISA KEV catalog, FIRST EPSS. Links: NVD, CISA KEV. Metadata only. ThreatWire does not host exploit code.