CVE-2019-0941
Microsoft IIS Server Denial of Service Vulnerability
- Published
- Updated
- Reserved
- Assigned by
- microsoft
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| microsoftCNA (assigner) | 3.1 | Medium4.4 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L/E:P/RL:O/RC:C |
| NVDNVD · Modified | 3.1 | Medium4.4 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L |
- EPSS (exploitation in 30 days)
- 3.0% · top 12% of all CVEs (6 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.4.
Weakness
- Denial of Service
- CWE-19 (opens in a new tab)All about CWE-19 and its CVEs
Affected products
Microsoft · Windows 10 Version 1903 for 32-bit Systems
- affected 10.0.0 – < publication
Microsoft · Windows 10 Version 1803
- affected 10.0.0 – < publication
Microsoft · Windows Server, version 1903 (Server Core installation)
- affected 10.0.0 – < publication
Microsoft · Windows 7 Service Pack 1
- affected 6.1.0 – < publication
Microsoft · Windows Server 2008 R2 Service Pack 1
- affected 6.1.7601.0 – < publication
Microsoft · Windows 10 Version 1903 for x64-based Systems
- affected 10.0.0 – < publication
Microsoft · Windows 10 Version 1809
- affected 10.0.0 – < publication
Microsoft · Windows Server 2019
- affected 10.0.17763.0 – < publication
- affected 6.3.0 – < publication
Microsoft · Windows Server 2012 (Server Core installation)
- affected 6.2.9200.0 – < publication
Microsoft · Windows 10 Version 1903 for ARM64-based Systems
- affected 10.0.0 – < publication
Microsoft · Windows 10 Version 1507
- affected 10.0.10240.0 – < publication
Microsoft · Windows 10 Version 1709
- affected 10.0.0 – < publication
Microsoft · Windows 10 Version 1703
- affected 10.0.0 – < publication
Microsoft · Windows 10 Version 1809
- affected 10.0.17763.0 – < publication
Microsoft · Windows Server, version 1803 (Server Core Installation)
- affected 10.0.0 – < publication
Microsoft · Windows Server 2019 (Server Core installation)
- affected 10.0.17763.0 – < publication
Microsoft · Windows Server 2016 (Server Core installation)
- affected 10.0.14393.0 – < publication
Microsoft · Windows 10 Version 1607
- affected 10.0.14393.0 – < publication
- affected 6.1.0 – < publication
Microsoft · Windows Server 2008 Service Pack 2 (Server Core installation)
- affected 6.0.6003.0 – < publication
Microsoft · Windows Server 2008 R2 Service Pack 1 (Server Core installation)
- affected 6.1.7601.0 – < publication
Microsoft · Windows Server 2012 R2
- affected 6.3.9600.0 – < publication
Microsoft · Windows 10 Version 1709 for 32-bit Systems
- affected 10.0.0 – < publication
Microsoft · Windows Server 2012
- affected 6.2.9200.0 – < publication
Microsoft · Windows Server 2008 Service Pack 2
- affected 6.0.6003.0 – < publication
Microsoft · Windows Server 2012 R2 (Server Core installation)
- affected 6.3.9600.0 – < publication
Microsoft · Windows Server 2016
- affected 10.0.14393.0 – < publication
Microsoft · Windows Server 2008 R2 Systems Service Pack 1
- affected 6.1.0 – < publication
Microsoft · Windows Server 2008 Service Pack 2
- affected 6.0.6003.0 – < publication
Microsoft · Windows Server 2008 Service Pack 2
- affected 6.0.0 – < publication
References (2)
- Microsoft IIS Server Denial of Service Vulnerability (opens in a new tab)vendor-advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0941 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2019-0941)Record last updated .