CVE-2026-57108

.NET Denial of Service Vulnerability

Published Jul 14, 2026 CVSS 3.1 · 7.5 High EPSS 1.2% KEV · Not listed
Description
Access of resource using incompatible type ('type confusion') in .NET Core allows an unauthorized attacker to deny service over a network.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
Github GHSA Github GHSA GHSA-rp2p-6cmp-jxj9 Microsoft Security Advisory CVE-2026-57108 – .NET Denial of Service Vulnerability
Ubuntu USN Ubuntu USN USN-8553-1 .NET vulnerabilities
History
Type Values Removed Values Added
First Time appeared Redhat
Redhat hummingbird
CPEs cpe:/a:redhat:hummingbird:1
Vendors & Products Redhat
Redhat hummingbird
References
Metrics threat_severity

None

threat_severity

Important

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Access of resource using incompatible type ('type confusion') in .NET Core allows an unauthorized attacker to deny service over a network.
Title .NET Denial of Service Vulnerability
First Time appeared Microsoft
Microsoft .net
Weaknesses CWE-843
CPEs cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft .net
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
microsoft
Published
Updated
Nov 10, 2026, 10:40 PM
Reserved
Jun 23, 2026, 6:29 PM
Status
Analyzed
Published
Jul 14, 2026, 6:18 PM
Modified
Oct 28, 2026, 8:18 PM
Severity
Important
Public date
Jul 14, 2026, 5:09 PM