CVE-2026-62872: CWE-863: Incorrect Authorization in Microsoft Microsoft .NET Framework 3.5
Incorrect authorization in .NET Framework allows an authorized attacker to elevate privileges over a network.
AI Analysis
Technical Summary
This vulnerability, identified as CWE-863 (Incorrect Authorization), affects Microsoft .NET Framework 3.5. It permits an attacker who already has some level of authorization to escalate their privileges remotely over a network. The CVSS 3.1 base score is 8.8, indicating high severity with high impact on confidentiality, integrity, and availability. Microsoft has published an official fix for this vulnerability, as detailed in their security advisory.
Potential Impact
An attacker with authorized access can exploit this vulnerability to gain elevated privileges, potentially leading to full compromise of the affected system. The impact includes complete loss of confidentiality, integrity, and availability of the system running the vulnerable .NET Framework version.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability. Users and administrators should apply the provided patch promptly to mitigate the risk. Refer to the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62872 for detailed update instructions.
CVE-2026-62872: CWE-863: Incorrect Authorization in Microsoft Microsoft .NET Framework 3.5
Description
Incorrect authorization in .NET Framework allows an authorized attacker to elevate privileges over a network.
CVSS v3.1
Score 8.8high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability, identified as CWE-863 (Incorrect Authorization), affects Microsoft .NET Framework 3.5. It permits an attacker who already has some level of authorization to escalate their privileges remotely over a network. The CVSS 3.1 base score is 8.8, indicating high severity with high impact on confidentiality, integrity, and availability. Microsoft has published an official fix for this vulnerability, as detailed in their security advisory.
Potential Impact
An attacker with authorized access can exploit this vulnerability to gain elevated privileges, potentially leading to full compromise of the affected system. The impact includes complete loss of confidentiality, integrity, and availability of the system running the vulnerable .NET Framework version.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability. Users and administrators should apply the provided patch promptly to mitigate the risk. Refer to the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62872 for detailed update instructions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-07-14T21:13:55.100Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62872","vendor":"Microsoft"}]
Threat ID: 6a7b581fbf8831d5391560d5
Added to database: 08/11/2026, 17:13:03 UTC
Last enriched: 08/11/2026, 21:12:59 UTC
Last updated: 08/11/2026, 23:42:07 UTC
Views: 2
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