CVE-2026-62872: .NET Framework Elevation of Privilege Vulnerability

Published Aug 11, 2026
·
Updated

.NET Framework Elevation of Privilege Vulnerability

Other sources

Incorrect authorization in .NET Framework allows an authorized attacker to elevate privileges over a network.

— Microsoft

Affected Software

78 affected componentsFixes available
Microsoft .NET Framework=4.6.2, =4.7, =4.7.1, =4.7.2
4.7.4144.0
Microsoft .NET Framework=3.5, =4.6.2, =4.7, =4.7.1, =4.7.2
2.0.50727.8984 & 3.0.30729.8980 & 4.7.4144.0
Microsoft .NET Framework=3.5, =4.7.2
2.0.50727.9070 & 3.0.30729.9068 & 4.7.4144.0
Microsoft .NET Framework=4.6.2, =4.7, =4.7.1, =4.7.2
4.7.4144.0
Microsoft .NET Framework=4.8.1
4.8.9344.0
Microsoft .NET Framework=3.5, =4.8
2.0.50727.9183 & 3.0.30729.9169 & 4.8.4805.0
Microsoft .NET Framework=3.5, =4.8
2.0.50727.9070 & 3.0.30729.9068 & 4.8.4805.0
Microsoft .NET Framework=4.8
4.8.4805.0
Microsoft .NET Framework=4.8
4.8.4805.0
Microsoft .NET Framework=3.5, =4.8.1
2.0.50727.9183 & 3.0.30729.9169 & 4.8.9344.0
Microsoft .NET Framework=3.5, =4.8.1
2.0.50727.9183 & 3.0.30729.9169 & 4.8.9343.0
Microsoft .NET Framework=4.8
4.8.4805.0
Microsoft .NET Framework=3.5
2.0.50727.8984 & 3.0.30729.8980
Microsoft .NET Framework=3.5
2.0.50727.8984 & 3.0.30729.8980
Microsoft .NET Framework=3.5
2.0.50727.9183 & 3.0.30729.9169
Microsoft .NET Framework=3.5, =4.8.1
2.0.50727.9183 & 3.0.30729.9169 & 4.8.9343.0
Microsoft .NET Framework=3.5, =4.8.1
2.0.50727.9183 & 3.0.30729.9169 & 4.8.9343.0
All of the following
Microsoft .NET Framework=4.8.1
Any of the following
Microsoft Windows 11 26h1
Microsoft Windows 11 26h1
All of the following
Microsoft .NET Framework=4.8
Any of the following
Microsoft Windows 10 1607
Microsoft Windows 10 1607
Microsoft Windows Server 2012
Microsoft Windows Server 2012=r2
Microsoft Windows Server 2016
All of the following
Any of the following
Microsoft .NET Framework=4.6.2
Microsoft .NET Framework=4.7
Microsoft .NET Framework=4.7.1
Microsoft .NET Framework=4.7.2
Any of the following
Microsoft Windows Server 2012
Microsoft Windows Server 2012=r2
All of the following
Any of the following
Microsoft .NET Framework=3.5
Microsoft .NET Framework=4.8.1
Any of the following
Microsoft Windows 10 21h2
Microsoft Windows 10 21h2
Microsoft Windows 10 21h2
Microsoft Windows 10 22h2
Microsoft Windows 10 22h2
Microsoft Windows 10 22h2
Microsoft Windows 11 23h2
Microsoft Windows 11 23h2
Microsoft Windows 11 24h2
Microsoft Windows 11 24h2
Microsoft Windows 11 25h2
Microsoft Windows 11 25h2
Microsoft Windows Server 2022
Microsoft Windows Server 2025
All of the following
Any of the following
Microsoft .NET Framework=3.5
Microsoft .NET Framework=4.7.2
Any of the following
Microsoft Windows 10 1809
Microsoft Windows 10 1809
Microsoft Windows Server 2019
All of the following
Any of the following
Microsoft .NET Framework=3.5
Microsoft .NET Framework=4.8
Any of the following
Microsoft Windows 10 1809
Microsoft Windows 10 1809
Microsoft Windows 10 21h2
Microsoft Windows 10 21h2
Microsoft Windows 10 21h2
Microsoft Windows 10 22h2
Microsoft Windows 10 22h2
Microsoft Windows 10 22h2
Microsoft Windows Server 2019
Microsoft Windows Server 2022
All of the following
Any of the following
Microsoft .NET Framework=3.5
Microsoft .NET Framework=4.6.2
Microsoft .NET Framework=4.7
Microsoft .NET Framework=4.7.1
Microsoft .NET Framework=4.7.2
Any of the following
Microsoft Windows 10 1607
Microsoft Windows 10 1607
Microsoft Windows Server 2016
All of the following
Microsoft .NET Framework=3.5
Any of the following
Microsoft Windows 11 26h1
Microsoft Windows 11 26h1
Microsoft Windows Server 2012
Microsoft Windows Server 2012=r2

Remediation

Patch Available

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62872

Event History

Aug 11, 2026
CVE Published
via Microsoft·02:00 PM
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeakness
Data Sourced
via Microsoft·02:00 PM
Affected Software
Updated
via Microsoft·02:00 PM
Description
CVE Published
via MITRE·05:06 PM
Data Sourced
via MITRE·05:06 PM
DescriptionSeverity
Data Sourced
via NVD·05:18 PM
RemedyDescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2026-62872?

CVE-2026-62872 has a severity rating of high, with a score of 8.8.

2

How do I fix CVE-2026-62872?

To fix CVE-2026-62872, ensure that you apply the latest security updates and patches provided by Microsoft for the .NET Framework.

3

What type of vulnerability is CVE-2026-62872?

CVE-2026-62872 is classified as an Elevation of Privilege vulnerability.

4

Who is affected by CVE-2026-62872?

CVE-2026-62872 affects authorized users of the Microsoft .NET Framework who could exploit the vulnerability to elevate their privileges over a network.

5

What impact does CVE-2026-62872 have on systems?

CVE-2026-62872 can allow an authorized attacker to gain higher privileges than intended, potentially compromising system security.

Company

Resources

Contact

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