Security November 2026 Latest record .NET Security Feature Bypass Vulnerability Recorded 10 Nov 2026 at 18:32 UTC. This is what ChangeIntel recorded, including the title, summary, facts and links. It is not a statement of the source's current position.
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CVE Microsoft Security Response Center
.NET Security Feature Bypass Vulnerability Not failing securely ('failing open') in .NET allows an unauthorized attacker to bypass a security feature over a network.
CVE CVE-2026-118746
Severity Important
CVSS base score 6.8
CVSS vector CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C
Impact Security Feature Bypass
Exploitation detected No known exploitation (MSRC assessment)
Publicly disclosed No (MSRC assessment)
Exploitability Exploitation Less Likely
Component .NET
Weakness CWE-636: Not Failing Securely ('Failing Open')
Issued by Microsoft
Customer action Required: follow the MSRC remediation guidance
Affected products .NET 11.0 installed on Linux, .NET 11.0 installed on Mac OS
Updates that fix it No KB listed
CISA KEV Not listed in the collected catalog
EPSS No EPSS score collected
Public detection template No Nuclei template listed
Published 10 Nov 2026 08:00 UTC
Last revised 10 Nov 2026 08:00 UTC
Revision note Information published.
Microsoft security releases Complete at observationRead 10 Nov 2026 at 18:30 UTC
CISA KEV Complete at observationRead 10 Nov 2026 at 18:30 UTC
FIRST EPSS Complete at observationRead 10 Nov 2026 at 18:30 UTC
Public detection templates (Nuclei) Complete at observationRead 10 Nov 2026 at 18:30 UTC Coverage describes the sources at this observation. A complete read then does not establish their current position.
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