What is CVE-2026-118746?

CVE-2026-118746 is a medium-severity vulnerability in Microsoft .Net 11.0 Installed On Linux, classified under CWE-636. CVSS score: 6.8/10. Published 2026-11-10.

How severe is CVE-2026-118746?

Medium severity. CVSS v3 base score is 6.8 out of 10.

Vulnerability in Microsoft .Net 11.0 Installed On Linux

CVE-2026-118746

Not failing securely ('failing open') in .NET allows an unauthorized attacker to bypass a security feature over a network.

Published 2026-11-10 · last modified 2026-11-10.

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Microsoft .Net 11.0 Installed On Linux
Microsoft .Net 11.0 Installed On Mac OS

Weakness classification (CWE)

CWE-636

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-118746 (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-118746?: CVE-2026-118746 is a medium-severity vulnerability in Microsoft .Net 11.0 Installed On Linux, classified under CWE-636. CVSS score: 6.8/10. Published 2026-11-10.
How severe is CVE-2026-118746?: Medium severity. CVSS v3 base score is 6.8 out of 10.