Vulnerability in Microsoft Asp.net Core 10.0

CVE-2026-70186

Deadlock in ASP.NET Core allows an unauthorized attacker to deny service over a network.

Published 2026-10-13 · last modified 2026-10-13.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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

Weakness classification (CWE)

CWE-833

References

ASP.NET Core Denial of Service Vulnerability (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-70186?: CVE-2026-70186 is a high-severity vulnerability in Microsoft Asp.net Core 10.0, classified under CWE-833. CVSS score: 7.5/10. Published 2026-10-13.
How severe is CVE-2026-70186?: High severity. CVSS v3 base score is 7.5 out of 10.