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CVE-2020-1170

26
FAUCET Score

CVE-2020-1170 describes an elevation of privilege vulnerability in Microsoft Windows Defender, allowing an authenticated attacker to perform arbitrary file deletion on the system. This vulnerability carries a high CVSS score of 7.8, indicating significant impact (confidentiality, integrity, and availability) with low attack complexity, requiring local access. While no public exploit code is available via Metasploit or ExploitDB, and it is not listed in CISA's KEV catalog, there has been some community discussion and media coverage, suggesting awareness of its potential.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:microsoft:windows_defender:-:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:microsoft:forefront_endpoint_protection_2010:-:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:microsoft:security_essentials:-:*:*:*:*:*:*:*
2012CPE matchmatch criteria
cpe:2.3:a:microsoft:system_center_endpoint_protection:2012:*:*:*:*:*:*:*
2012CPE matchmatch criteria
cpe:2.3:a:microsoft:system_center_endpoint_protection:2012:r2:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.61%
Probability of exploitation in next 30 days
EPSS Percentile
73.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0161 is in the 96th percentile among its peer group of 17,070 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 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)

microsoft2020-Jun/CVE-2020-1170Important

Microsoft Windows Defender Elevation of Privilege Vulnerability

Jun 9, 2020

References

packetstormsecurity.com / files/160919/Cloud-Filter-Arbitrary-File-Creation-Privilege-Escalation.html
ExploitThird Party AdvisoryVDB Entry
portal.msrc.microsoft.com / en-US/security-guidance/advisory/CVE-2020-1170
PatchVendor Advisory