CVE-2019-0865

HIGH

Windows 10 and Windows Server 2016/2019 - Denial of Service via SymCrypt Digital Signature Handling

Title source: llm

Description

A denial of service vulnerability exists when SymCrypt improperly handles a specially crafted digital signature.An attacker could exploit the vulnerability by creating a specially crafted connection or message.The security update addresses the vulnerability by correcting the way SymCrypt handles digital signatures., aka 'SymCrypt Denial of Service Vulnerability'.

References (1)

Core 1

Core References

Patch, Vendor Advisory x_refsource_misc

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0865

Scores

CVSS v3 7.5

EPSS 0.0450

EPSS Percentile 90.5%

Attack Vector NETWORK

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

Status published

Products (8)

microsoft/windows_10 1703

microsoft/windows_10 1709

microsoft/windows_10 1803

microsoft/windows_10 1809

microsoft/windows_10 1903

microsoft/windows_server_2016 1803

microsoft/windows_server_2016 1903

microsoft/windows_server_2019

Published Jul 15, 2019

Tracked Since Feb 18, 2026