VulnerabilityModified
CVE-2020-0645
A tampering vulnerability exists when Microsoft IIS Server improperly handles malformed request headers, aka 'Microsoft IIS Server Tampering Vulnerability'.
HIGH 7.5EPSS 3.90%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.90%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A tampering vulnerability exists when Microsoft IIS Server improperly handles malformed request headers, aka 'Microsoft IIS Server Tampering Vulnerability'.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- EPSS
- 3.90% probability · 90th percentile
- CISA KEV
- Not listed
- Affected
- microsoft/windows 10 · microsoft/windows 7 · microsoft/windows 8.1 · microsoft/windows rt 8.1 · microsoft/windows server 2008 · microsoft/windows server 2012 · microsoft/windows server 2016 · microsoft/windows server 2019
- Source
- secure@microsoft.com
References
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0645Patch, Vendor Advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0645Patch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.