CVE-2026-40372
published 2026-04-21CVE-2026-40372: Improper verification of cryptographic signature in ASP.NET Core allows an unauthorized attacker to elevate privileges over a network.
critical9.1CVSS 3.1
AVNACLPRNUINSUCHIHAN
Improper verification of cryptographic signature in ASP.NET Core allows an unauthorized attacker to elevate privileges over a network.
Affected
4 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | asp.net_core | >= 10.0.0 < 10.0.7 | 10.0.7 |
| microsoft | asp.net_core_10.0 | >= 10.0 < 10.0.7 | 10.0.7 |
| microsoft | microsoft_visual_studio_2026_version_18.5 | >= 18.5.0 < 18.5.2 | 18.5.2 |
| ubuntu | dotnet10 | — | — |
CVSS provenance
nvdv3.19.1CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
ghsa9.1CRITICAL