CVE-2026-34327: CWE-610: Externally Controlled Reference to a Resource in Another Sphere in Microsoft Microsoft Partner Center
Externally controlled reference to a resource in another sphere in Microsoft Partner Center allows an unauthorized attacker to perform spoofing over a network.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-34327) in Microsoft Partner Center is classified as CWE-610, which involves externally controlled references to resources in another sphere. Such a vulnerability can enable attackers to spoof network communications by manipulating references to resources outside the intended security boundary. The CVSS 3.1 vector indicates the attack can be performed remotely without privileges or user interaction, with high confidentiality impact and low integrity impact. Microsoft has published an official fix to address this issue.
Potential Impact
The vulnerability allows unauthorized attackers to perform spoofing attacks over a network, potentially leading to unauthorized disclosure of information (high confidentiality impact). The integrity impact is low, and availability is not affected. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators of Microsoft Partner Center should apply the vendor-provided patch as soon as possible. Refer to the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34327 for detailed remediation instructions.
CVE-2026-34327: CWE-610: Externally Controlled Reference to a Resource in Another Sphere in Microsoft Microsoft Partner Center
Description
Externally controlled reference to a resource in another sphere in Microsoft Partner Center allows an unauthorized attacker to perform spoofing over a network.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-34327) in Microsoft Partner Center is classified as CWE-610, which involves externally controlled references to resources in another sphere. Such a vulnerability can enable attackers to spoof network communications by manipulating references to resources outside the intended security boundary. The CVSS 3.1 vector indicates the attack can be performed remotely without privileges or user interaction, with high confidentiality impact and low integrity impact. Microsoft has published an official fix to address this issue.
Potential Impact
The vulnerability allows unauthorized attackers to perform spoofing attacks over a network, potentially leading to unauthorized disclosure of information (high confidentiality impact). The integrity impact is low, and availability is not affected. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators of Microsoft Partner Center should apply the vendor-provided patch as soon as possible. Refer to the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34327 for detailed remediation instructions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-03-26T21:02:16.445Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34327","vendor":"Microsoft"}]
Threat ID: 69fd029bcbff5d8610389b87
Added to database: 5/7/2026, 9:22:35 PM
Last enriched: 5/7/2026, 9:36:50 PM
Last updated: 5/8/2026, 9:53:47 PM
Views: 15
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