CVE-2026-62909: CWE-252: Unchecked Return Value in Microsoft .NET 10.0
Uncaught exception in .NET allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability in Microsoft .NET 10.0 (CVE-2026-62909) is caused by an unchecked return value that results in an uncaught exception. This flaw can be exploited by an authorized local attacker to elevate privileges on the affected system. The vulnerability is tracked under CWE-248 and CWE-252 and has a CVSS v3.1 base score of 7.8, indicating high severity. Microsoft has released an official fix to address this issue.
Potential Impact
An authorized local attacker can exploit this vulnerability to elevate their privileges, potentially gaining higher-level access than intended. The vulnerability affects confidentiality, integrity, and availability with high impact as per the CVSS vector. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the patch provided in the Microsoft security update for CVE-2026-62909 as soon as possible to remediate this vulnerability.
CVE-2026-62909: CWE-252: Unchecked Return Value in Microsoft .NET 10.0
Description
Uncaught exception in .NET allows an authorized attacker to elevate privileges locally.
CVSS v3.1
Score 7.8high
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Microsoft .NET 10.0 (CVE-2026-62909) is caused by an unchecked return value that results in an uncaught exception. This flaw can be exploited by an authorized local attacker to elevate privileges on the affected system. The vulnerability is tracked under CWE-248 and CWE-252 and has a CVSS v3.1 base score of 7.8, indicating high severity. Microsoft has released an official fix to address this issue.
Potential Impact
An authorized local attacker can exploit this vulnerability to elevate their privileges, potentially gaining higher-level access than intended. The vulnerability affects confidentiality, integrity, and availability with high impact as per the CVSS vector. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the patch provided in the Microsoft security update for CVE-2026-62909 as soon as possible to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-07-14T21:25:21.036Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62909","vendor":"Microsoft"}]
Threat ID: 6a7b5823bf8831d5391561ff
Added to database: 08/11/2026, 17:13:07 UTC
Last enriched: 08/11/2026, 20:56:45 UTC
Last updated: 08/12/2026, 01:41:11 UTC
Views: 4
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