CVE-2026-27912: CWE-285: Improper Authorization in Microsoft Windows Server 2012
Improper authorization in Windows Kerberos allows an authorized attacker to elevate privileges over an adjacent network.
AI Analysis
Technical Summary
This vulnerability involves improper authorization in the Windows Kerberos implementation on Windows Server 2012 (version 6.2.9200.0). An attacker with some level of authorization on an adjacent network can exploit this flaw to elevate their privileges. The vulnerability is tracked as CWE-285 (Improper Authorization). Microsoft has published an official fix to address this issue.
Potential Impact
Successful exploitation could allow an attacker with limited privileges on an adjacent network to gain elevated privileges, potentially leading to full system compromise. The vulnerability affects confidentiality, integrity, and availability as indicated by the CVSS vector (C:H/I:H/A:H). There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-27912 to remediate this vulnerability.
CVE-2026-27912: CWE-285: Improper Authorization in Microsoft Windows Server 2012
Description
Improper authorization in Windows Kerberos allows an authorized attacker to elevate privileges over an adjacent network.
CVSS v3.1
Score 8.0high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves improper authorization in the Windows Kerberos implementation on Windows Server 2012 (version 6.2.9200.0). An attacker with some level of authorization on an adjacent network can exploit this flaw to elevate their privileges. The vulnerability is tracked as CWE-285 (Improper Authorization). Microsoft has published an official fix to address this issue.
Potential Impact
Successful exploitation could allow an attacker with limited privileges on an adjacent network to gain elevated privileges, potentially leading to full system compromise. The vulnerability affects confidentiality, integrity, and availability as indicated by the CVSS vector (C:H/I:H/A:H). There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-27912 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-02-24T21:35:49.686Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-27912","vendor":"Microsoft"}]
Threat ID: 69de7a2182d89c981fd6a7c4
Added to database: 04/14/2026, 17:32:17 UTC
Last enriched: 06/19/2026, 17:01:58 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 127
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