VulnerabilityModified
CVE-2017-0249
An elevation of privilege vulnerability exists when the ASP.NET Core fails to properly sanitize web requests.
HIGH 7.3EPSS 4.25%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.25%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An elevation of privilege vulnerability exists when the ASP.NET Core fails to properly sanitize web requests.
- CVSS 3.0
- 7.3 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
- EPSS
- 4.25% probability · 91th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- microsoft/asp.net model view controller · microsoft/microsoft.aspnetcore.mvc.abstractions · microsoft/microsoft.aspnetcore.mvc.apiexplorer · microsoft/microsoft.aspnetcore.mvc.cors · microsoft/microsoft.aspnetcore.mvc.dataannotations · microsoft/microsoft.aspnetcore.mvc.formatters.json · microsoft/microsoft.aspnetcore.mvc.formatters.xml · microsoft/microsoft.aspnetcore.mvc.localization · microsoft/microsoft.aspnetcore.mvc.razor · microsoft/microsoft.aspnetcore.mvc.razor.host · microsoft/microsoft.aspnetcore.mvc.taghelpers · microsoft/microsoft.aspnetcore.mvc.viewfeatures · microsoft/microsoft.aspnetcore.mvc.webapicompatshim · microsoft/system.net.http · microsoft/system.net.http.winhttphandler · microsoft/system.net.security · microsoft/system.net.websockets.client · microsoft/system.text.encodings.web
- Source
- secure@microsoft.com
EPSS moved from 7.8% on 21 September 2026 to 4.2% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
References
- https://github.com/aspnet/Announcements/issues/239Technical Description, Third Party Advisory
- https://github.com/aspnet/Announcements/issues/239Technical Description, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.