Advisoriesby IbisMicrosoftCVE-2026-62872
Microsoft .NET Framework: improper authorization
Fix: upgrade to 2.0.50727.9183 & 3.0.30729.9169 or later (8 fixed versions below)
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