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CVE-2026-32177 Details
Description
Heap-based buffer overflow in .NET allows an unauthorized attacker to elevate privileges locally.
A heap-based buffer overflow vulnerability has been identified in .NET, which allows an unauthorized attacker to elevate privileges locally. This vulnerability affects multiple versions of the .NET Framework, as well as .NET 9.0, 8.0, and 10.0 installed on Windows. The issue arises from improper input validation, leading to the potential for exploitation.
Users can download the security update for this vulnerability through the Microsoft Update Catalog. Specific update details can be found in the Microsoft Knowledge Base articles linked in the product-specific sections.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed May 13, 2026Exploitation: NoneAutomatable: NoTechnical Impact: Total
References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2026-32177 | redhat-SADP | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2476664 | redhat-SADP | |
| https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-32177.json | redhat-SADP | |
| https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32177 | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-122 | Heap-based Buffer Overflow | redhat-SADP |
| CWE-122 | Heap-based Buffer Overflow | [email protected] |
| CWE-20 | Improper Input Validation | [email protected] |
| CWE-787 | Out-of-bounds Write | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| microsoft visual studio 2022 | >= 17.12.0, < 17.12.20 >= 17.14.0, < 17.14.32 |
CPE
Remediation
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| microsoft visual studio 2026 | >= 18.5.0, < 18.5.3 |
CPE
Remediation
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| microsoft .net framework | 4.8 4.6.2 4.7 4.7.1 4.7.2 3.5 4.8.1 |
CPE
Remediation
| |
| microsoft windows 10 1607 | All versions |
CPE
Remediation
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| microsoft windows server 2012 | r2 |
CPE
Remediation
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| microsoft windows server 2016 | All versions |
CPE
Remediation
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| microsoft windows 10 21h2 | All versions |
CPE
Remediation
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| microsoft windows 10 22h2 | All versions |
CPE
Remediation
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| microsoft windows 11 22h2 | All versions |
CPE
Remediation
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| microsoft windows 11 23h2 | All versions |
CPE
Remediation
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| microsoft windows 11 24h2 | All versions |
CPE
Remediation
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| microsoft windows 11 25h2 | All versions |
CPE
Remediation
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| microsoft windows 11 26h1 | All versions |
CPE
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| microsoft windows server 2022 | All versions |
CPE
Remediation
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| microsoft windows server 2025 | All versions |
CPE
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| microsoft windows 10 1809 | All versions |
CPE
Remediation
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| microsoft windows server 2019 | All versions |
CPE
Remediation
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| microsoft .net | >= 8.0.0, < 8.0.27 >= 9.0.0, < 9.0.16 >= 10.0.0, < 10.0.8 |
CPE
Remediation
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| microsoft windows | All versions |
CPE
Remediation
| |
Change History
7 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 15, 2026 | CVE Modified | redhat-SADP |
| Jun 30, 2026 | CVE Modified | redhat-SADP |
| Jun 19, 2026 | CVE Modified | [email protected] |
| Jun 18, 2026 | Initial Analysis | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jun 17, 2026 | CVE Modified | [email protected] |
| May 12, 2026 | New CVE Received | [email protected] |