CVE-2026-20965 Details
Description
Improper verification of cryptographic signature in Windows Admin Center allows an authorized attacker to elevate privileges locally.
A vulnerability allowing improper verification of cryptographic signatures has been identified in Windows Admin Center. This issue enables an authorized attacker to locally elevate privileges on affected systems. The vulnerability arises from a flaw in how cryptographic signatures are verified, potentially allowing attackers to manipulate permissions or access rights.
Users can update Windows Admin Center in the Azure Portal by accessing the 'AdminCenter' extension on their virtual machine. If automatic upgrades are not enabled, the update can be manually installed through the Azure Portal.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jan 14, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20965 | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-347 | Improper Verification of Cryptographic Signature | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| microsoft windows admin center | < 0.70.0.0 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jan 16, 2026 | Initial Analysis | [email protected] |
| Jan 13, 2026 | New CVE Received | [email protected] |