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CVE-2017-11937

37
FAUCET Score

CVE-2017-11937 is a remote code execution vulnerability in the Microsoft Malware Protection Engine, affecting various Windows operating systems, Microsoft Defender, Forefront, and Exchange Server. This high-severity flaw (CVSS 7.8) allows an attacker to execute arbitrary code by tricking a user into opening a specially crafted file, leveraging a local attack vector with low complexity. While there is no known public exploit code or active exploitation, the vulnerability has garnered significant community discussion and media coverage, indicating its potential impact.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.1.14306.0CPE matchmatch criteria
cpe:2.3:a:microsoft:malware_protection_engine:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.8HIGH

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
28.33%
Probability of exploitation in next 30 days
EPSS Percentile
97.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.2833 is in the 98th percentile among its peer group of 11,617 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

microsoftpatch availablevia nvd_reference
View patch

Vendor Advisories (1)

microsoft2017-Dec/CVE-2017-11937Critical

Microsoft Malware Protection Engine Remote Code Execution Vulnerability

Dec 12, 2017

References

portal.msrc.microsoft.com / en-US/security-guidance/advisory/CVE-2017-11937
PatchVendor Advisory
securityfocus.com / bid/102070
Third Party AdvisoryVDB Entry
securitytracker.com / id/1039972
Third Party AdvisoryVDB Entry