What is CVE-2021-26434?

CVE-2021-26434 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. Visual Studio Elevation of Privilege Vulnerability

Which CVE IDs does CVE-2021-26434 cover?

CVE-2021-26434 covers the following CVE IDs: CVE-2021-26434. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2021-26434?

CVE-2021-26434 has a CVSS v3 base score of 7.8, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2021-26434?

CVE-2021-26434 affects 5 products, including: Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8); Microsoft Visual Studio 2019 version 16.11 (includes 16.0 - 16.10); Microsoft Visual Studio 2019 version 16.4 (includes 16.0 - 16.3); Microsoft Visual Studio 2019 version 16.7 (includes 16.0 – 16.6); Microsoft Visual Studio 2019 version 16.9 (includes 16.0 - 16.8).

CVE-2021-26434HighCVSS 7.8

Visual Studio Elevation of Privilege Vulnerability

Vendor

Microsoft Security Response Center (MSRC)

Published

September 14, 2021

Last Modified

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🔗 CVE IDs covered (1)

CVE-2021-26434 →

🎯 Affected products5

Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8)
Microsoft Visual Studio 2019 version 16.11 (includes 16.0 - 16.10)
Microsoft Visual Studio 2019 version 16.4 (includes 16.0 - 16.3)
Microsoft Visual Studio 2019 version 16.7 (includes 16.0 – 16.6)
Microsoft Visual Studio 2019 version 16.9 (includes 16.0 - 16.8)

✅ Remediation

KBRelease Notes (Security Update) — fixed build 15.9.39 KBRelease Notes (Security Update) — fixed build 16.4.26 KBRelease Notes (Security Update) — fixed build 16.7.19 KBRelease Notes (Security Update) — fixed build 16.9.11 KBRelease Notes (Security Update) — fixed build 16.11.3

🔗 References (11)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-26434
patchhttp://aka.ms/vs/15/release/latest
referencehttps://docs.microsoft.com/en-us/visualstudio/releasenotes/vs2017-relnotes
patchhttps://my.visualstudio.com/Downloads?q=Visual Studio 2019 version 16.4
referencehttps://docs.microsoft.com/en-us/visualstudio/releases/2019/release-notes-v16.4
patchhttps://my.visualstudio.com/Downloads?q=Visual Studio 2019 version 16.7
referencehttps://docs.microsoft.com/en-us/visualstudio/releases/2019/release-notes-v16.7
patchhttps://my.visualstudio.com/Downloads?q=Visual Studio 2019 version 16.9
referencehttps://docs.microsoft.com/en-us/visualstudio/releases/2019/release-notes-v16.9
patchhttps://my.visualstudio.com/Downloads?q=Visual Studio 2019 version 16.11
referencehttps://docs.microsoft.com/en-us/visualstudio/releases/2019/release-notes-v16.11