Vulnerability Description
Heap-based buffer overflow in .NET allows an unauthorized attacker to elevate privileges locally.
CVSS Score
7.3
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Visual Studio 2022 | >= 17.12.0, < 17.12.20 |
| Microsoft | Visual Studio 2026 | >= 18.5.0, < 18.5.3 |
| Microsoft | .Net Framework | 4.8 |
| Microsoft | Windows 10 1607 | - |
| Microsoft | Windows Server 2012 | - |
| Microsoft | Windows Server 2016 | - |
| Microsoft | Windows 10 21H2 | - |
| Microsoft | Windows 10 22H2 | - |
| Microsoft | Windows 11 22H2 | - |
| Microsoft | Windows 11 23H2 | - |
| Microsoft | Windows 11 24H2 | - |
| Microsoft | Windows 11 25H2 | - |
| Microsoft | Windows 11 26H1 | - |
| Microsoft | Windows Server 2022 | - |
| Microsoft | Windows Server 2025 | - |
| Microsoft | Windows 10 1809 | - |
| Microsoft | Windows Server 2019 | - |
| Microsoft | .Net | >= 8.0.0, < 8.0.27 |
| Microsoft | Windows | - |
Related Weaknesses (CWE)
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32177Vendor Advisory
- https://access.redhat.com/security/cve/CVE-2026-32177
- https://bugzilla.redhat.com/show_bug.cgi?id=2476664
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-32177.json
FAQ
What is CVE-2026-32177?
CVE-2026-32177 is a vulnerability with a CVSS score of 7.3 (HIGH). Heap-based buffer overflow in .NET allows an unauthorized attacker to elevate privileges locally.
How severe is CVE-2026-32177?
CVE-2026-32177 has been rated HIGH with a CVSS base score of 7.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-32177?
Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Visual Studio 2022, Microsoft Visual Studio 2026, Microsoft .Net Framework, Microsoft Windows 10 1607, Microsoft Windows Server 2012.