CVE-2026-40372 PUBLISHED

ASP.NET Core Elevation of Privilege Vulnerability

Assigner: microsoft
Reserved: 11.04.2026 Published: 21.04.2026 Updated: 22.04.2026

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

Metrics

CVSS 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
CVSS Score: 9.1

Product Status

Vendor Microsoft
Product ASP.NET Core 10.0
Versions
  • affected from 10.0 to 10.0.7 (excl.)

References

Problem Types