Vigie VulnDBEuropean-hosted Vulnerability DB

CVE-2020-1476

ASP.NET and .NET Elevation of Privilege Vulnerability

At a glance

Severity
Not available
EPSS
EPSS 1.13 % · percentile 66 (2026-10-27)
State
PUBLISHED
Published
Updated
Assigner
microsoft
NVD status
Modified

Description

An elevation of privilege vulnerability exists when ASP.NET or .NET web applications running on IIS improperly allow access to cached files. An attacker who successfully exploited this vulnerability could gain access to restricted files. To exploit this vulnerability, an attacker would need to send a specially crafted request to an affected server. The update addresses the vulnerability by changing how ASP.NET and .NET handle requests.

Scores

VersionScoreVectorScored by
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NNVD · nvd@nist.gov (Primary)
CVSS 2.0LOW 2.1AV:L/AC:L/Au:N/C:P/I:N/A:NNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Microsoft · Microsoft .NET Framework 4.8affected 4.8.0 < publication
Microsoft · Microsoft .NET Framework 3.5 AND 4.8affected 4.8.0 < publication
Microsoft · Microsoft .NET Framework 2.0 Service Pack 2affected 2.0.0 < publication
Microsoft · Microsoft .NET Framework 4.5.2affected 4.0.0.0 < publication
Microsoft · Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2affected 4.0.0.0 < publication
Microsoft · Microsoft .NET Framework 3.5 AND 4.7.2affected 4.7.0 < publication
Microsoft · Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2affected 3.0.0.0 < publication
Microsoft · Microsoft .NET Framework 3.5 AND 4.6/4.6.1/4.6.2affected 3.5.0 < publication
Microsoft · Microsoft .NET Framework 3.5 AND 4.7.1/4.7.2affected 3.0 < publication
Microsoft · Microsoft .NET Framework 4.6affected 4.0.0.0 < publication
Microsoft · Microsoft .NET Framework 3.5affected 3.5.0 < publication
Microsoft · Microsoft .NET Framework 3.5.1affected 3.5.0 < publication

References

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD