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OpenAdvisories
High MSRC-CVE-2026-62886 1 CVE

.NET Elevation of Privilege Vulnerability

Published Aug 11, 2026 · Updated Aug 17, 2026 · Revision 3

Vendor: Microsoft

Summary

Impact: Elevation of Privilege. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.

Details

What privileges could be gained by an attacker who successfully exploited this vulnerability?
An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.

According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do?
Exploitation of this vulnerability requires that a user trigger the payload in the application.

Security updates
2.0.50727.8987 AND 3.0.30729.8982 — https://support.microsoft.com/help/5127660
4.7.4145.0 — https://support.microsoft.com/help/5126044
4.8.4806.0 — https://support.microsoft.com/help/5126049
4.8.4806.0 — https://support.microsoft.com/help/5126051
4.8.4806.0 — https://support.microsoft.com/help/5126047
2.0.50727.9073 AND 3.0.30729.9070 AND 4.7.4150.0 — https://support.microsoft.com/help/5127666
2.0.50727.9073 AND 3.0.30729.9070 AND 4.8.4811.0 — https://support.microsoft.com/help/5127685
2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0 — https://support.microsoft.com/help/5127693
2.0.50727.9070 & 3.0.30729.9068 & 4.7.4145.0 — https://support.microsoft.com/help/5126043
2.0.50727.9070 & 3.0.30729.9068 & 4.8.4806.0 — https://support.microsoft.com/help/5126421
2.0.50727.9183 & 3.0.30729.9169 & 4.8.4806.0 — https://support.microsoft.com/help/5126046
2.0.50727.9183 & 3.0.30729.9169 & 4.8.9347.0 — https://support.microsoft.com/help/5126052
2.0.50727.9183 & 3.0.30729.9169 — https://support.microsoft.com/help/5120747
4.8.9347.0 — https://support.microsoft.com/help/5126053
2.0.50727.8987 AND 3.0.30729.8982 — https://support.microsoft.com/help/5127664
4.7.4145.0 — https://support.microsoft.com/help/5126045
2.0.50727.8987 AND 3.0.30729.8982 AND 4.7.4150.0 — https://support.microsoft.com/help/5126868
2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.4811.0 — https://support.microsoft.com/help/5127687
2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0 — https://support.microsoft.com/help/5127690
2.0.50727.8984 & 3.0.30729.8980 & 4.7.4145.0 — https://support.microsoft.com/help/5123099
2.0.50727.9183 & 3.0.30729.9169 & 4.8.9347.0 — https://support.microsoft.com/help/5126424
10.0.11 — https://support.microsoft.com/help/5122106
8.0.30 — https://support.microsoft.com/help/5122104
9.0.19 — https://support.microsoft.com/help/5122105
2.0.50727.9188 AND 3.0.30729.9171 — https://support.microsoft.com/help/5127696

Vulnerabilities 1

Revision history

  1. #3

    Acknowledgement Updated

  2. #2

    Removed Linux and macOS products from the Affected Software table. This is an informational change only.

  3. #1

    Information published.

References