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Fencer Vulns
medium 6.1

CVE-2020-1220 json

A spoofing vulnerability exists when theMicrosoft Edge (Chromium-based) in IE Mode improperly handles specific redirects, aka 'Microsoft Ed…

published 2020-06-09 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-12100

cvss
6.1
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.9%
EPSS 1.9% chance of exploitation in 30 days, percentile 79%
public exploits
0
none known

Summary

A spoofing vulnerability exists when theMicrosoft Edge (Chromium-based) in IE Mode improperly handles specific redirects, aka 'Microsoft Edge (Chromium-based) in IE Mode Spoofing Vulnerability'.

Patch / fix

Exploit prediction

1.86% chance of exploitation in the next 30 days, higher than 79% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD 2.0 5.8 AV:N/AC:M/Au:N/C:P/I:P/A:N

Affected products

  • Microsoft Microsoft Edge (Chromium-based) in IE Mode on Windows 10 Version 1803 for ARM64-based Systems
  • Microsoft Microsoft Edge (Chromium-based) in IE Mode on Windows 10 Version 1803 for 32-bit Systems
  • Microsoft Microsoft Edge (Chromium-based) in IE Mode on Windows 10 Version 1803 for x64-based Systems
  • Microsoft Microsoft Edge (Chromium-based) in IE Mode on Windows 10 Version 1709 for x64-based Systems
  • Microsoft Microsoft Edge (Chromium-based) in IE Mode on Windows 10 Version 1909 for x64-based Systems
  • Microsoft Microsoft Edge (Chromium-based) in IE Mode on Windows 10 Version 1903 for 32-bit Systems
  • Microsoft Microsoft Edge (Chromium-based) in IE Mode on Windows 10 Version 1809 for ARM64-based Systems
  • Microsoft Microsoft Edge (Chromium-based) in IE Mode on Windows 10 Version 1809 for x64-based Systems
  • Microsoft Microsoft Edge (Chromium-based) in IE Mode on Windows Server 2019
  • Microsoft Microsoft Edge (Chromium-based) in IE Mode on Windows 10 Version 2004 for ARM64-based Systems
  • Microsoft Microsoft Edge (Chromium-based) in IE Mode on Windows 10 Version 1909 for 32-bit Systems
  • Microsoft Microsoft Edge (Chromium-based) in IE Mode on Windows 10 Version 1903 for x64-based Systems
  • Microsoft Microsoft Edge (Chromium-based) in IE Mode on Windows 10 Version 1903 for ARM64-based Systems
  • Microsoft Microsoft Edge (Chromium-based) in IE Mode on Windows 10 Version 2004 for x64-based Systems
  • Microsoft Microsoft Edge (Chromium-based) in IE Mode on Windows 10 Version 1809 for 32-bit Systems
  • Microsoft Microsoft Edge (Chromium-based) in IE Mode on Windows Server 2012 R2
  • Microsoft Microsoft Edge (Chromium-based) in IE Mode on Windows 10 Version 1607 for x64-based Systems
  • Microsoft Microsoft Edge (Chromium-based) in IE Mode on Windows RT 8.1
  • Microsoft Microsoft Edge (Chromium-based) in IE Mode on Windows 10 Version 2004 for 32-bit Systems
  • Microsoft Microsoft Edge (Chromium-based) in IE Mode on Windows 10 Version 1909 for ARM64-based Systems
  • Microsoft Microsoft Edge (Chromium-based) in IE Mode on Windows 7 for x64-based Systems Service Pack 1
  • Microsoft Microsoft Edge (Chromium-based) in IE Mode on Windows Server 2012
  • Microsoft Microsoft Edge (Chromium-based) in IE Mode on Windows Server 2008 R2 for x64-based Systems Service Pack 1
  • Microsoft Microsoft Edge (Chromium-based) in IE Mode on Windows 10 Version 1607 for 32-bit Systems
  • Microsoft Microsoft Edge (Chromium-based) in IE Mode on Windows 8.1 for 32-bit systems
  • Microsoft Microsoft Edge (Chromium-based) in IE Mode on Windows Server 2016
  • Microsoft Microsoft Edge (Chromium-based) in IE Mode on Windows 10 Version 1709 for ARM64-based Systems
  • Microsoft Microsoft Edge (Chromium-based) in IE Mode on Windows 10 Version 1709 for 32-bit Systems
  • Microsoft Microsoft Edge (Chromium-based) in IE Mode on Windows 8.1 for x64-based systems
  • Microsoft Microsoft Edge (Chromium-based) in IE Mode on Windows 10 for x64-based Systems
  • Microsoft Microsoft Edge (Chromium-based) in IE Mode on Windows 10 for 32-bit Systems
  • Microsoft Microsoft Edge (Chromium-based) in IE Mode on Windows 7 for 32-bit Systems Service Pack 1

Classification

Weakness
  • CWE-601 URL Redirection to Untrusted Site

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.