Important CVSS 7.1 EPSS 0.00844 2020-03 archive

Executive Summary

A denial of service vulnerability exists when the Visual Studio Extension Installer Service improperly handles hard links. An attacker who successfully exploited the vulnerability could cause a target system to stop responding. To exploit this vulnerability, an attacker would have to log on to an affected system and run a specially crafted application. The vulnerability would allow an attacker to overwrite system files. The update addresses the vulnerability by correcting how the Visual Studio Extension Installer Service handles hard links.

Overview

7.1
CVSS HIGH
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
Category Denial of Service
Released Mar 10 2020
Last Updated Mar 10 2020
Publicly Disclosed No
CISA KEV Not Listed
Known Exploits None Known
EPSS Score 0.00844 — 0.53132 percentile
NVD CVSS 7.1 HIGH — differs from MSRC

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
ATTACK VECTOR
Local
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
Low
USER INTERACTION
None
SCOPE
Unchanged

EPSS Score

0.00844
probability of exploitation in the next 30 days
0.53132 percentile - updated 2026-06-21
View on FIRST.org

Affected Products

2 affected products
Product KB Article Severity Impact Restart Required
Microsoft Visual Studio 2019 version 16.0 Release Notes (Security Update) Important Denial of Service Maybe
Microsoft Visual Studio 2019 version 16.4 (includes 16.0 - 16.3) Release Notes (Security Update) Important Denial of Service Maybe

Patches

1 patch
Article Type Restart
Release Notes Security Update Maybe

Known Exploits

Acknowledgments