MicrosoftCVE-2026-62872
Microsoft .NET Framework: improper authorization
High8.8CVE-2026-62872 · Published Aug 11, 2026 · updated Aug 14, 2026
Incorrect authorization in .NET Framework allows an authorized attacker to elevate privileges over a network.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| Microsoft .NET Framework 3.5 Product | >= 3.5.0, < 2.0.50727.9183 & 3.0.30729.9169 | 2.0.50727.9183 & 3.0.30729.9169 |
| Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 Product | >= 3.0.0.0, < 2.0.50727.8984 & 3.0.30729.8980 & 4.7.4144.0 | 2.0.50727.8984 & 3.0.30729.8980 & 4.7.4144.0 |
| Microsoft .NET Framework 3.5 AND 4.7.2 Product | >= 4.7.0, < 2.0.50727.9070 & 3.0.30729.9068 & 4.7.4144.0 | 2.0.50727.9070 & 3.0.30729.9068 & 4.7.4144.0 |
| Microsoft .NET Framework 3.5 AND 4.8 Product | >= 4.8.0, < 2.0.50727.9070 & 3.0.30729.9068 & 4.8.4805.0 | 2.0.50727.9070 & 3.0.30729.9068 & 4.8.4805.0 |
| Microsoft .NET Framework 3.5 AND 4.8.1 Product | >= 4.8.1, < 2.0.50727.9183 & 3.0.30729.9169 & 4.8.9343.0 | 2.0.50727.9183 & 3.0.30729.9169 & 4.8.9343.0 |
| Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 Product | >= 4.7.0, < 4.7.4144.0 | 4.7.4144.0 |
| Microsoft .NET Framework 4.8 Product | >= 4.8.0, < 4.8.4805.0 | 4.8.4805.0 |
| Microsoft .NET Framework 4.8.1 Product | >= 4.8.0.0, < 4.8.9344.0 | 4.8.9344.0 |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-863
More Microsoft advisories
All Microsoft| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Aug 11 | Copilot Chat Security Feature Bypass Vulnerability | High7.1 | 1.132.1 |
| Aug 11 | Copilot Custom Agent Hook Remote Code Execution Vulnerability | High7.8 | 1.132.1 |
| Aug 11 | Information disclosure vulnerability | Medium | 1.132.1 |
| Aug 11 | Fileless RCE in VS Code Web Remote Terminal via URL-Controlled NODE_OPTIONS | High8.8 | 1.132.1 |
| Aug 11 | Visual Studio Code web deployments - environmentService.ts - RCE via NODE_OPTIONS --import from URL payload | High8.8 | 1.132.1 |
| Aug 11 | TerminalInstance._createProcess - Workspace Trust bypass via terminal waitOnExit | High7.8 | 1.132.1 |