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CVE-2019-1077

19
FAUCET Score

CVE-2019-1077 is an elevation of privilege vulnerability affecting Microsoft Visual Studio 2017 and 2019, stemming from improper file permission handling by the Visual Studio updater service. With a CVSS score of 5.0 (Medium), it requires local access and user interaction (UI:R) for an attacker to achieve high integrity impact (I:H), though confidentiality and availability are not affected. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or KEV listing. Despite limited community discussion and media coverage, it was addressed in Microsoft's July 2019 Patch Tuesday.

Impacted Technologies

VendorProductVersion(s)CPE
15.9CPE matchmatch criteria
cpe:2.3:a:microsoft:visual_studio_2017:15.9:*:*:*:*:*:*:*
16.0CPE matchmatch criteria
cpe:2.3:a:microsoft:visual_studio_2019:16.0:*:*:*:*:*:*:*
16.1CPE matchmatch criteria
cpe:2.3:a:microsoft:visual_studio_2019:16.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.0MEDIUM

CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
1.3
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.75%
Probability of exploitation in next 30 days
EPSS Percentile
75.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0175 is in the 89th percentile among its peer group of 382 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

microsoftpatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8)
View patch
microsoftpatch availablevia msrc
Product: Microsoft Visual Studio 2019 version 16.0
View patch
microsoftpatch availablevia msrc
Product: Microsoft Visual Studio 2019 version 16.1
View patch

Vendor Advisories (1)

microsoft2019-Jul/CVE-2019-1077Important

Visual Studio Elevation of Privilege Vulnerability

Jul 9, 2019

References

portal.msrc.microsoft.com / en-US/security-guidance/advisory/CVE-2019-1077
PatchVendor Advisory