CVE-2026-26183: CWE-284: Improper Access Control in Microsoft Windows Server 2012
Improper access control in Windows RPC API allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-26183) affects Windows Server 2012 (version 6.2.9200.0) and is classified under CWE-284 (Improper Access Control). It arises from insufficient access control checks in the Windows RPC API, enabling a local attacker with some level of authorization to escalate privileges. The CVSS 3.1 base score is 7.8, reflecting high impact on confidentiality, integrity, and availability. Microsoft has released an official fix to remediate this vulnerability, as documented in their security update guide.
Potential Impact
Exploitation of this vulnerability allows an authorized local user to elevate their privileges, potentially leading to full system compromise. The impact includes high confidentiality, integrity, and availability consequences, meaning sensitive data could be exposed or altered, and system operations disrupted.
Mitigation Recommendations
An official patch is available from Microsoft and should be applied promptly to remediate this vulnerability. Refer to the Microsoft security update guide at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26183 for detailed patch information and deployment instructions.
CVE-2026-26183: CWE-284: Improper Access Control in Microsoft Windows Server 2012
Description
Improper access control in Windows RPC API allows an authorized attacker to elevate privileges locally.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-26183) affects Windows Server 2012 (version 6.2.9200.0) and is classified under CWE-284 (Improper Access Control). It arises from insufficient access control checks in the Windows RPC API, enabling a local attacker with some level of authorization to escalate privileges. The CVSS 3.1 base score is 7.8, reflecting high impact on confidentiality, integrity, and availability. Microsoft has released an official fix to remediate this vulnerability, as documented in their security update guide.
Potential Impact
Exploitation of this vulnerability allows an authorized local user to elevate their privileges, potentially leading to full system compromise. The impact includes high confidentiality, integrity, and availability consequences, meaning sensitive data could be exposed or altered, and system operations disrupted.
Mitigation Recommendations
An official patch is available from Microsoft and should be applied promptly to remediate this vulnerability. Refer to the Microsoft security update guide at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26183 for detailed patch information and deployment instructions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-02-11T18:33:57.778Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26183","vendor":"Microsoft"}]
Threat ID: 69de7a1d82d89c981fd6a722
Added to database: 4/14/2026, 5:32:13 PM
Last enriched: 4/14/2026, 7:03:56 PM
Last updated: 4/15/2026, 6:07:43 AM
Views: 3
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