Improper verification of cryptographic signature in ASP.NET Core allows an unauthorized attacker to elevate privileges over a network.

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History

Wed, 22 Apr 2026 00:00:00 +0000

Type Values Removed Values Added
Description Improper verification of cryptographic signature in ASP.NET Core allows an unauthorized attacker to elevate privileges over a network.
Title ASP.NET Core Elevation of Privilege Vulnerability
First Time appeared Microsoft
Microsoft asp.net Core
Weaknesses CWE-347
CPEs cpe:2.3:a:microsoft:asp.net_core:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft asp.net Core
References
Metrics cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-04-21T19:40:52.330Z

Reserved: 2026-04-11T23:06:15.615Z

Link: CVE-2026-40372

cve-icon Vulnrichment

Updated: 2026-04-21T19:40:48.644Z

cve-icon NVD

Status : Received

Published: 2026-04-21T20:16:59.133

Modified: 2026-04-21T20:16:59.133

Link: CVE-2026-40372

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses