CVE-2026-32177
High
Description
Heap-based buffer overflow in .NET allows an unauthorized attacker to elevate privileges locally.
SeverityHigh
CVSS7.3
Exploit probability—
Product
Microsoft .net Framework
PublishedMay 12, 2026
First seenMay 12, 2026
Weakness typeCWE-122CWE-122CWE-20Improper input validation
How to fix
Update
- microsoft visual_studio_202217.12.20, 17.14.32 or later
- microsoft visual_studio_202618.5.3 or later
- microsoft .net8.0.27, 9.0.16, 10.0.8 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| microsoft .net_framework | 4.8, 4.6.2, 4.7, 4.7.1, 4.7.2, 3.5, 4.8.1 | — |
| microsoft visual_studio_2022 | 17.12.0 ≤ v < 17.12.20, 17.14.0 ≤ v < 17.14.32 | 17.12.20, 17.14.32 |
| microsoft visual_studio_2026 | 18.5.0 ≤ v < 18.5.3 | 18.5.3 |
| microsoft .net | 8.0.0 ≤ v < 8.0.27, 9.0.0 ≤ v < 9.0.16, 10.0.0 ≤ v < 10.0.8 | 8.0.27, 9.0.16, 10.0.8 |
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