High (7.5). EPSS 5.7% chance of exploitation in the next 30 days.
A denial of service vulnerability exists when .NET Framework and .NET Core improperly process RegEx strings, aka '.NET Framework and .NET Core Denial of Service Vulnerability'. This CVE ID is unique from CVE-2019-0980, CVE-2019-0981.
Severity
CVSS 3.1
7.5 high
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
5.7% chance of exploitation in the next 30 days; higher than 93% of CVEs (scores of 2026-10-31)