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Fencer Intel
high 7.8

CVE-2017-0290 in the critical feed json

The Microsoft Malware Protection Engine running on Microsoft Forefront and Microsoft Defender on Microsoft Windows Server 2008 SP2 and R2 S…

published 2017-05-09 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-0646

cvss
7.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
81.4%
EPSS 81.4% chance of exploitation in 30 days, percentile 99.6%
public exploits
1
Exploit-DB

Summary

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 does not properly scan a specially crafted file leading to memory corruption, aka "Microsoft Malware Protection Engine Remote Code Execution Vulnerability."

Patch / fix

Timeline

  1. First public exploit (EDB-41975)
  2. Published

Exploit prediction

81.42% chance of exploitation in the next 30 days, higher than 99.6% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-41975 Microsoft Security Essentials / SCEP (Microsoft Windows 8/8.1/10 / Windows Server) - 'MsMpEng' Remote Type Confusion remote, 2017-05-09
  • bugs.chromium.org https://bugs.chromium.org/p/project-zero/issues/detail?id=1252 referenced PoC, tagged "exploit" by a source, unverified
  • twitter.com https://twitter.com/natashenka/status/861748397409058816 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 7.8 CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 9.3 AV:N/AC:M/Au:N/C:C/I:C/A:C

Affected products

  • Microsoft Corporation Microsoft Malware Protection Engine

Classification

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

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.