Important CVSS 5.5 EPSS 0.01214 2020-06 archive

Executive Summary

A denial of service vulnerability exists when Connected User Experiences and Telemetry Service improperly handles file operations. An attacker who successfully exploited this vulnerability could cause a system to stop responding. To exploit the vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability. The security update addresses the vulnerability by correcting how the Connected User Experiences and Telemetry Service handles file operations.

Overview

5.5
CVSS MEDIUM
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
Category Denial of Service
Released Jun 9 2020
Last Updated Jun 9 2020
Publicly Disclosed No
CISA KEV Not Listed
Known Exploits None Known
EPSS Score 0.01214 — 0.64558 percentile
NVD CVSS 5.5 MEDIUM — differs from MSRC

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C
ATTACK VECTOR
Local
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
Low
USER INTERACTION
None
SCOPE
Unchanged
CONFIDENTIALITY
None
INTEGRITY
High
AVAILABILITY
High
EXPLOIT CODE MATURITY
Proof-of-Concept
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 6.4

EPSS Score

0.01214
probability of exploitation in the next 30 days
0.64558 percentile - updated 2026-06-21
View on FIRST.org

Affected Products

4 affected products
Product KB Article Severity Impact Restart Required
Windows 10 Version 2004 for 32-bit Systems 4557957 (Security Update) Important Denial of Service Yes
Windows 10 Version 2004 for ARM64-based Systems 4557957 (Security Update) Important Denial of Service Yes
Windows 10 Version 2004 for x64-based Systems 4557957 (Security Update) Important Denial of Service Yes
Windows Server, version 2004 (Server Core installation) 4557957 (Security Update) Important Denial of Service Yes

Patches

1 patch
Article Type Restart
4557957 Security Update Yes

Known Exploits

Acknowledgments