Advisoriesby IbisMicrosoftCVE-2026-62897
Microsoft .NET 10.0 runtime: integer overflow
Fix: upgrade to 10.0.11 or later (9 fixed versions below)
Integer overflow or wraparound in .NET Framework allows an unauthorized attacker to execute code locally.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| .NET 10.0 runtime Product | >= 10.0.0, < 10.0.11 | 10.0.11 |
| .NET 8.0 runtime Product | >= 8.0.0, < 8.0.30 | 8.0.30 |
| .NET 9.0 runtime Product | >= 9.0.0, < 9.0.19 | 9.0.19 |
| 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 4.7.2 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 4.8.1 Product | >= 4.8.0.0, < 4.8.9344.0 | 4.8.9344.0 |
| Microsoft Visual Studio 2022 version 17.14 Product | >= 17.14.0, < 17.14.38 | 17.14.38 |
| Microsoft Visual Studio 2026 version 18.8 Product | >= 18.0, < 18.8.3 | 18.8.3 |
Changes since it was listed
Fixed in: .NET 10.0 10.0.11, .NET 8.0 8.0.30, .NET 9.0 9.0.19 to .NET 10.0 runtime 10.0.11, .NET 8.0 runtime 8.0.30, .NET 9.0 runtime 9.0.19
Details and references
- CVSS 3.1
- CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-190