HIGH

CVE-2026-50646

CVSS v3

7.8

HIGH

EPSS Score

4.0 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

dotnetBitnamifrom 8.0.0 · fixed in 8.0.29and 1 other package
Microsoft.WindowsDesktop.App.Runtime.win-x64NuGetfrom 8.0.0 · fixed in 8.0.29and 2 other packages
dotnetAlmaLinux:8all versions · fixed in 10.0.110-1.el8_10and 5 other packages
dotnet-hostAlmaLinux:10all versions · fixed in 10.0.10-1.el10_2and 8 other packages
dotnet-hostAlmaLinux:9all versions · fixed in 10.0.10-1.el9_8and 8 other packages
dotnet-hostAlmaLinux:8all versions · fixed in 10.0.10-1.el8_10and 8 other packages
dotnet-hostfxr-8.0AlmaLinux:10all versions · fixed in 8.0.29-1.el10_2and 7 other packages
dotnet-hostfxr-8.0AlmaLinux:9all versions · fixed in 8.0.29-1.el9_8and 7 other packages

12 more package ranges on OSV.dev

Vendor advisories

CVE-2026-50646 Red Hat Product Security1,472 products fixed
dotnet: .NET Framework: Local Code Execution via Protection Mechanism Failure
RHSA-2026:58570 Red Hat Product Security119 products fixed
Red Hat Security Advisory: .NET 9.0 security, bug fix, and enhancement update
RHSA-2026:58569 Red Hat Product Security97 products fixed
Red Hat Security Advisory: .NET 8.0 security, bug fix, and enhancement update
RHSA-2026:58568 Red Hat Product Security81 products fixed
Red Hat Security Advisory: .NET 8.0 security, bug fix, and enhancement update
RHSA-2026:58567 Red Hat Product Security111 products fixed
Red Hat Security Advisory: .NET 9.0 security, bug fix, and enhancement update
RHSA-2026:58566 Red Hat Product Security89 products fixed
Red Hat Security Advisory: .NET 8.0 security, bug fix, and enhancement update

11 more advisories

Full record on NVD

Description

Protection mechanism failure in .NET Framework allows an unauthorized attacker to execute code locally.

Technical details

CVSS v3 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published: 2026-07-14
Last Modified: 2026-07-15

Frequently asked questions

What is CVE-2026-50646?

Protection mechanism failure in .NET Framework allows an unauthorized attacker to execute code locally.

Is CVE-2026-50646 actively exploited?

Active exploitation of CVE-2026-50646 has not been confirmed. Its EPSS score was 4.0% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-50646?

CVE-2026-50646 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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