Vulnerability Intelligence Report
Visual Studio Elevation of Privilege Vulnerability
CVE-2021-26434
Visual Studio Elevation of Privilege Vulnerability
No Active Exploit Signals
CVSS Base Score
7.8
HIGH
Exploitability:1.9
Impact Score:5.9
EPSS Probability:0.83%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
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Weaponization
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SSVC Action
—
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Microsoft | Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8) | 15.9.0 < 15.9.39 (affected) |
| Microsoft | Microsoft Visual Studio 2019 version 16.11 (includes 16.0 - 16.10) | 16.11.0 < 16.11.3 (affected) |
| Microsoft | Microsoft Visual Studio 2019 version 16.4 (includes 16.0 - 16.3) | 16.0 < 16.4.26 (affected) |
| Microsoft | Microsoft Visual Studio 2019 version 16.7 (includes 16.0 – 16.6) | 16.0.0 < 16.7.19 (affected) |
| Microsoft | Microsoft Visual Studio 2019 version 16.9 (includes 16.0 - 16.8) | 15.0.0 < 16.9.11 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.828%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Microsoft Corporation · Vendor · USA |
| Reserved | 2021-01-29T00:00:00 |
| Published | 2021-09-15T11:23:00 |
| Patch Date | 2021-09-14 |
| Last Updated | 2026-08-10T15:10:59 |
Community Chatter & Buzz