Vulnerability · Published Mar 12, 2020 · Assigned by microsoft

CVE-2020-0645

High 7.5

In plain English

A high-severity security flaw in Windows from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 3.9% (higher than 90% of all known vulnerabilities).

Severity (CVSS NVD)7.5High
Exploit odds (30 days)3.9%top 9.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

A tampering vulnerability exists when Microsoft IIS Server improperly handles malformed request headers, aka 'Microsoft IIS Server Tampering Vulnerability'.

Affected products (as reported)

VendorProductVersions
Microsoft Windows 10 Version 1803 for 32-bit Systems10 Version 1803 for x64-based Systems10 Version 1803 for ARM64-based Systems10 Version 1809 for 32-bit Systems10 Version 1809 for x64-based Systems10 Version 1809 for ARM64-based Systems10 Version 1709 for 32-bit Systems10 Version 1709 for x64-based Systems
Microsoft Windows Server version 1803 (Core Installation)20192019 (Core installation)20162016 (Core installation)2008 for 32-bit Systems Service Pack 22008 for 32-bit Systems Service Pack 2 (Core installation)2008 for Itanium-Based Systems Service Pack 2
Microsoft Windows 10 Version 1903 for 32-bit Systems unspecified
Microsoft Windows 10 Version 1903 for x64-based Systems unspecified
Microsoft Windows 10 Version 1903 for ARM64-based Systems unspecified
Microsoft Windows Server, version 1903 (Server Core installation) unspecified
Microsoft Windows 10 Version 1909 for 32-bit Systems unspecified
Microsoft Windows 10 Version 1909 for x64-based Systems unspecified
Microsoft Windows 10 Version 1909 for ARM64-based Systems unspecified
Microsoft Windows Server, version 1909 (Server Core installation) unspecified

References