CVE-2026-40372

EUVD-2026-24249
Improper verification of cryptographic signature in ASP.NET Core allows an unauthorized attacker to elevate privileges over a network.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9.1 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 95.65%
Affected Products (NVD)
VendorProductVersion
microsoftasp.net_core
10.0.0 ≤
𝑥
< 10.0.7
𝑥
= Vulnerable software versions
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
dotnet10
bionic
dne
focal
dne
jammy
dne
noble
Fixed 10.0.107-10.0.7-0ubuntu1~24.04.1
released
questing
Fixed 10.0.107-10.0.7-0ubuntu1~25.10.1
released
resolute
Fixed 10.0.107-10.0.7-0ubuntu1~26.04.1
released
trusty
dne
xenial
dne
dotnet6
bionic
dne
focal
dne
jammy
not-affected
noble
dne
questing
dne
trusty
dne
xenial
dne
dotnet7
bionic
dne
focal
dne
jammy
ignored
noble
dne
questing
dne
trusty
dne
xenial
dne
dotnet8
bionic
dne
focal
dne
jammy
not-affected
noble
not-affected
questing
not-affected
trusty
dne
xenial
dne
dotnet9
bionic
dne
focal
dne
jammy
dne
noble
dne
questing
not-affected
trusty
dne
xenial
dne
Amazon Linux logo
Amazon Linux Releases
Amazon Package
Release
aspnetcore-runtime-10.0
Amazon Linux 2023
0:10.0.7-1.amzn2023.0.1
fixed
aspnetcore-runtime-dbg-10.0
Amazon Linux 2023
0:10.0.7-1.amzn2023.0.1
fixed
aspnetcore-targeting-pack-10.0
Amazon Linux 2023
0:10.0.7-1.amzn2023.0.1
fixed
dotnet
Amazon Linux 2023
0:10.0.107-1.amzn2023.0.1
fixed
dotnet-apphost-pack-10.0
Amazon Linux 2023
0:10.0.7-1.amzn2023.0.1
fixed
dotnet-apphost-pack-10.0-debuginfo
Amazon Linux 2023
0:10.0.7-1.amzn2023.0.1
fixed
dotnet-host
Amazon Linux 2023
0:10.0.7-1.amzn2023.0.1
fixed
dotnet-host-debuginfo
Amazon Linux 2023
0:10.0.7-1.amzn2023.0.1
fixed
dotnet-hostfxr-10.0
Amazon Linux 2023
0:10.0.7-1.amzn2023.0.1
fixed
dotnet-hostfxr-10.0-debuginfo
Amazon Linux 2023
0:10.0.7-1.amzn2023.0.1
fixed
dotnet-runtime-10.0
Amazon Linux 2023
0:10.0.7-1.amzn2023.0.1
fixed
dotnet-runtime-10.0-debuginfo
Amazon Linux 2023
0:10.0.7-1.amzn2023.0.1
fixed
dotnet-runtime-dbg-10.0
Amazon Linux 2023
0:10.0.7-1.amzn2023.0.1
fixed
dotnet-sdk-10.0
Amazon Linux 2023
0:10.0.107-1.amzn2023.0.1
fixed
dotnet-sdk-10.0-debuginfo
Amazon Linux 2023
0:10.0.107-1.amzn2023.0.1
fixed
dotnet-sdk-10.0-source-built-artifacts
Amazon Linux 2023
0:10.0.107-1.amzn2023.0.1
fixed
dotnet-sdk-aot-10.0
Amazon Linux 2023
0:10.0.107-1.amzn2023.0.1
fixed
dotnet-sdk-aot-10.0-debuginfo
Amazon Linux 2023
0:10.0.107-1.amzn2023.0.1
fixed
dotnet-sdk-dbg-10.0
Amazon Linux 2023
0:10.0.107-1.amzn2023.0.1
fixed
dotnet-targeting-pack-10.0
Amazon Linux 2023
0:10.0.7-1.amzn2023.0.1
fixed
dotnet-templates-10.0
Amazon Linux 2023
0:10.0.107-1.amzn2023.0.1
fixed
dotnet10.0-debuginfo
Amazon Linux 2023
0:10.0.107-1.amzn2023.0.1
fixed
dotnet10.0-debugsource
Amazon Linux 2023
0:10.0.107-1.amzn2023.0.1
fixed
Common Weakness Enumeration
References
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40372
https://access.redhat.com/security/cve/CVE-2026-40372
https://bugzilla.redhat.com/show_bug.cgi?id=2460224
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-40372.json