CVE-2026-40372

CriticalCVSS 9.1/10Last modified Oct 26, 2026

Description

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

Metrics

CVSS 3.1 9.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Weakness enumeration

Affected software

VendorProductVersions
MicrosoftASP.NET Core 10.0>= 10.0, < 10.0.7
MicrosoftMicrosoft Visual Studio 2026 version 18.5>= 18.5.0, < 18.5.2
Red HatRed Hat Enterprise Linux 10—
Red HatRed Hat Enterprise Linux 8—
Red HatRed Hat Enterprise Linux 9—
Red HatRed Hat Hardened Images—

References

Timeline

Published
Apr 21, 2026
Last modified
Oct 26, 2026
NVD status
Modified

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CVE-2026-40372: Critical severity, CVSS 9.1 | Vulnix