VulnerabilityModified

CVE-2019-0941

A denial of service exists in Microsoft IIS Server when the optional request filtering feature improperly handles requests.

MEDIUM 4.4EPSS 3.04%

Does this matter?

Lower severity and a low EPSS score (3.04%). Track it; it rarely justifies an emergency change on its own.

Description

A denial of service exists in Microsoft IIS Server when the optional request filtering feature improperly handles requests. An attacker who successfully exploited this vulnerability could perform a temporary denial of service against pages configured to use request filtering. To exploit this vulnerability, an attacker could send a specially crafted request to a page utilizing request filtering. The update addresses the vulnerability by changing the way certain requests are processed by the filter.

CVSS 3.1: 4.4 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
EPSS: 3.04% probability · 87th percentile
CISA KEV: Not listed
Weakness: CWE-19
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

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.