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Fencer Intel
medium 4.3

CVE-2019-1220 json

A security feature bypass vulnerability exists when Microsoft Browsers fail to validate the correct Security Zone of requests for specific…

published 7y ago modified 4mo ago also EUVD-2019-9787

cvss
4.3
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.8%
EPSS 3.8% chance of exploitation in 30 days, percentile 90%
public exploits
0
none known

Summary

A security feature bypass vulnerability exists when Microsoft Browsers fail to validate the correct Security Zone of requests for specific URLs, aka 'Microsoft Browser Security Feature Bypass Vulnerability'.

Patch / fix

Is CVE-2019-1220 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Exploit prediction

3.81% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:P/I:N/A:N

Affected products

  • Microsoft Internet Explorer 9
  • Microsoft Internet Explorer 11
  • Microsoft Internet Explorer 11 on Windows Server 2012
  • Microsoft Internet Explorer 11 on Windows 10 Version 1903 for 32-bit Systems
  • Microsoft Internet Explorer 11 on Windows 10 Version 1903 for x64-based Systems
  • Microsoft Internet Explorer 11 on Windows 10 Version 1903 for ARM64-based Systems
  • Microsoft Internet Explorer 10
  • Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 for 32-bit Systems
  • Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 for x64-based Systems
  • Microsoft Microsoft Edge (EdgeHTML-based) on Windows Server 2016
  • Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1607 for 32-bit Systems
  • Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1607 for x64-based Systems
  • Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1703 for 32-bit Systems
  • Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1703 for x64-based Systems
  • Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1709 for 32-bit Systems
  • Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1709 for x64-based Systems
  • Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for 32-bit Systems
  • Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for x64-based Systems
  • Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for ARM64-based Systems
  • Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1809 for 32-bit Systems
  • Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1809 for x64-based Systems
  • Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1809 for ARM64-based Systems
  • Microsoft Microsoft Edge (EdgeHTML-based) on Windows Server 2019
  • Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1709 for ARM64-based Systems
  • Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1903 for 32-bit Systems
  • Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1903 for x64-based Systems
  • Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1903 for ARM64-based Systems

Classification

Weakness

References

Sources

Fencer Intel 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.