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CVE-2017-0249

20
FAUCET Score

CVE-2017-0249 is an elevation of privilege vulnerability affecting Microsoft ASP.NET Core, stemming from improper sanitization of web requests. With a CVSS score of 7.3 (HIGH), it is network-exploitable with low attack complexity, potentially leading to low impact on confidentiality, integrity, and availability. Despite its severity, there is no evidence of active exploitation, public exploit code, or significant community discussion, and it is not listed in CISA's KEV catalog.

Impacted Technologies

VendorProductVersion(s)CPE
1.0.0CPE matchmatch criteria
cpe:2.3:a:microsoft:asp.net_model_view_controller:1.0.0:*:*:*:*:*:*:*
1.0.1CPE matchmatch criteria
cpe:2.3:a:microsoft:asp.net_model_view_controller:1.0.1:*:*:*:*:*:*:*
1.0.2CPE matchmatch criteria
cpe:2.3:a:microsoft:asp.net_model_view_controller:1.0.2:*:*:*:*:*:*:*
1.0.3CPE matchmatch criteria
cpe:2.3:a:microsoft:asp.net_model_view_controller:1.0.3:*:*:*:*:*:*:*
1.1.0CPE matchmatch criteria
cpe:2.3:a:microsoft:asp.net_model_view_controller:1.1.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.3HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
3.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
4.17%
Probability of exploitation in next 30 days
EPSS Percentile
89.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0417 is in the 82nd percentile among its peer group of 51,485 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (38)

nugetpatch availablevia ghsa
Product: Microsoft.AspNetCore.MvcFixed in: 1.1.3
nugetpatch availablevia ghsa
Product: Microsoft.AspNetCore.MvcFixed in: 1.0.4
nugetpatch availablevia ghsa
Product: Microsoft.AspNetCore.Mvc.CoreFixed in: 1.0.4
nugetpatch availablevia ghsa
Product: Microsoft.AspNetCore.Mvc.CoreFixed in: 1.1.3
nugetpatch availablevia ghsa
Product: System.Net.HttpFixed in: 4.1.2
nugetpatch availablevia ghsa
Product: System.Net.HttpFixed in: 4.3.2
nugetpatch availablevia ghsa
Product: System.Text.Encodings.WebFixed in: 4.0.1
nugetpatch availablevia ghsa
Product: System.Text.Encodings.WebFixed in: 4.3.1
nugetpatch availablevia ghsa
Product: System.Net.Http.WinHttpHandlerFixed in: 4.0.1
nugetpatch availablevia ghsa
Product: System.Net.Http.WinHttpHandlerFixed in: 4.3.1
nugetpatch availablevia ghsa
Product: System.Net.SecurityFixed in: 4.0.1
nugetpatch availablevia ghsa
Product: System.Net.SecurityFixed in: 4.3.1
nugetpatch availablevia ghsa
Product: System.Net.WebSockets.ClientFixed in: 4.0.1
nugetpatch availablevia ghsa
Product: System.Net.WebSockets.ClientFixed in: 4.3.1
nugetpatch availablevia ghsa
Product: Microsoft.AspNetCore.Mvc.AbstractionsFixed in: 1.0.4
nugetpatch availablevia ghsa
Product: Microsoft.AspNetCore.Mvc.AbstractionsFixed in: 1.1.3
nugetpatch availablevia ghsa
Product: Microsoft.AspNetCore.Mvc.ApiExplorerFixed in: 1.0.4
nugetpatch availablevia ghsa
Product: Microsoft.AspNetCore.Mvc.ApiExplorerFixed in: 1.1.3
nugetpatch availablevia ghsa
Product: Microsoft.AspNetCore.Mvc.CorsFixed in: 1.0.4
nugetpatch availablevia ghsa
Product: Microsoft.AspNetCore.Mvc.CorsFixed in: 1.1.3
nugetpatch availablevia ghsa
Product: Microsoft.AspNetCore.Mvc.DataAnnotationsFixed in: 1.0.4
nugetpatch availablevia ghsa
Product: Microsoft.AspNetCore.Mvc.DataAnnotationsFixed in: 1.1.3
nugetpatch availablevia ghsa
Product: Microsoft.AspNetCore.Mvc.Formatters.JsonFixed in: 1.0.4
nugetpatch availablevia ghsa
Product: Microsoft.AspNetCore.Mvc.Formatters.JsonFixed in: 1.1.3
nugetpatch availablevia ghsa
Product: Microsoft.AspNetCore.Mvc.Formatters.XmlFixed in: 1.0.4
nugetpatch availablevia ghsa
Product: Microsoft.AspNetCore.Mvc.Formatters.XmlFixed in: 1.1.3
nugetpatch availablevia ghsa
Product: Microsoft.AspNetCore.Mvc.LocalizationFixed in: 1.0.4
nugetpatch availablevia ghsa
Product: Microsoft.AspNetCore.Mvc.LocalizationFixed in: 1.1.3
nugetpatch availablevia ghsa
Product: Microsoft.AspNetCore.Mvc.Razor.HostFixed in: 1.0.4
nugetpatch availablevia ghsa
Product: Microsoft.AspNetCore.Mvc.Razor.HostFixed in: 1.1.3
nugetpatch availablevia ghsa
Product: Microsoft.AspNetCore.Mvc.RazorFixed in: 1.0.4
nugetpatch availablevia ghsa
Product: Microsoft.AspNetCore.Mvc.RazorFixed in: 1.1.3
nugetpatch availablevia ghsa
Product: Microsoft.AspNetCore.Mvc.TagHelpersFixed in: 1.0.4
nugetpatch availablevia ghsa
Product: Microsoft.AspNetCore.Mvc.TagHelpersFixed in: 1.1.3
nugetpatch availablevia ghsa
Product: Microsoft.AspNetCore.Mvc.ViewFeaturesFixed in: 1.0.4
nugetpatch availablevia ghsa
Product: Microsoft.AspNetCore.Mvc.ViewFeaturesFixed in: 1.1.3
nugetpatch availablevia ghsa
Product: Microsoft.AspNetCore.Mvc.WebApiCompatShimFixed in: 1.0.4
nugetpatch availablevia ghsa
Product: Microsoft.AspNetCore.Mvc.WebApiCompatShimFixed in: 1.1.3

Vendor Advisories (1)

nugetGHSA-qhqf-ghgh-x2m4high

High severity vulnerability that affects Microsoft.AspNetCore.Mvc

Oct 16, 2018

References

github.com / aspnet/Announcements/issues/239
Technical DescriptionThird Party Advisory