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VULNERABILITIES

CVE-2026-40372 Details

Description

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

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: redhat-SADPCVSS-B:9.1 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://access.redhat.com/security/cve/CVE-2026-40372 redhat-SADP
https://bugzilla.redhat.com/show_bug.cgi?id=2460224 redhat-SADP
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-40372.json redhat-SADP
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40372 [email protected]Vendor Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-347Improper Verification of Cryptographic Signatureredhat-SADP
CWE-347Improper Verification of Cryptographic Signature[email protected]

Affected Products

ProductVersions
microsoft asp.net core
>= 10.0.0, < 10.0.7

CPE

  • cpe:2.3:a:microsoft:asp.net_core:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

6 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-40372
NVD Published Date:
Apr 21, 2026
NVD Last Modified:
Jul 15, 2026
Source:
[email protected]
CVE-2026-40372 Details - Not Deferred