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CVE-2020-16909

25
FAUCET Score

CVE-2020-16909 is an elevation of privilege vulnerability in Windows Error Reporting (WER) affecting Windows 10, Server 2016, and Server 2019. An attacker could exploit this by running a specially crafted application, gaining greater access to sensitive information and system functionality. This vulnerability has a CVSS score of 7.8 (High), indicating a local attack vector with low complexity and high impact on confidentiality, integrity, and availability. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), it has garnered some community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:*
1607CPE matchmatch criteria
cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:*
1709CPE matchmatch criteria
cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:*
1803CPE matchmatch criteria
cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:*
1809CPE matchmatch criteria
cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:*

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
0.87%
Probability of exploitation in next 30 days
EPSS Percentile
55.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0087 is in the 90th 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 (30)

microsoftpatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 1803 for 32-bit Systems
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 1803 for x64-based Systems
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 1803 for ARM64-based Systems
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 1809 for 32-bit Systems
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 1809 for x64-based Systems
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 1809 for ARM64-based Systems
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2019
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2019 (Server Core installation)
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 1909 for 32-bit Systems
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 1909 for x64-based Systems
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 1909 for ARM64-based Systems
View patch
microsoftpatch availablevia msrc
Product: Windows Server, version 1909 (Server Core installation)
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 1903 for 32-bit Systems
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 1903 for x64-based Systems
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 1903 for ARM64-based Systems
View patch
microsoftpatch availablevia msrc
Product: Windows Server, version 1903 (Server Core installation)
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 1709 for 32-bit Systems
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 1709 for x64-based Systems
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 1709 for ARM64-based Systems
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 2004 for 32-bit Systems
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 2004 for ARM64-based Systems
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 2004 for x64-based Systems
View patch
microsoftpatch availablevia msrc
Product: Windows Server, version 2004 (Server Core installation)
View patch
microsoftpatch availablevia msrc
Product: Windows 10 for 32-bit Systems
View patch
microsoftpatch availablevia msrc
Product: Windows 10 for x64-based Systems
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 1607 for 32-bit Systems
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 1607 for x64-based Systems
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2016
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2016 (Server Core installation)
View patch

Vendor Advisories (1)

microsoft2020-Oct/CVE-2020-16909Important

Windows Error Reporting Elevation of Privilege Vulnerability

Oct 13, 2020

References

portal.msrc.microsoft.com / en-US/security-guidance/advisory/CVE-2020-16909
PatchVendor Advisory