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CVE-2020-1163

20
FAUCET Score

CVE-2020-1163 is an elevation of privilege vulnerability in Microsoft Windows Defender that allows for arbitrary file deletion. An attacker would need local access to the system to exploit this flaw. With a CVSS score of 7.8 (High), successful exploitation could lead to high impact on confidentiality, integrity, and availability. While there is no known active exploitation or public exploit code, the vulnerability has received some community discussion and media coverage, indicating awareness within the cybersecurity community.

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
0.85%
Probability of exploitation in next 30 days
EPSS Percentile
54.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0085 is in the 89th percentile among its peer group of 17,070 CVEs.

Social Chatter

No social media mentions found for this CVE.

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-2020-1163Important

Microsoft Windows Defender Elevation of Privilege Vulnerability

Jun 9, 2020

References

portal.msrc.microsoft.com / en-US/security-guidance/advisory/CVE-2020-1163
PatchVendor Advisory