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Fencer Intel
medium 4.3

CVE-2020-3887 json

A logic issue was addressed with improved restrictions.

published 6y ago modified 4mo ago also EUVD-2020-25152

cvss
4.3
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.2%
EPSS 1.2% chance of exploitation in 30 days, percentile 68%
public exploits
0
none known

Summary

A logic issue was addressed with improved restrictions. This issue is fixed in iOS 13.4 and iPadOS 13.4, tvOS 13.4, Safari 13.1, iTunes for Windows 12.10.5, iCloud for Windows 10.9.3, iCloud for Windows 7.18. A download's origin may be incorrectly associated.

Patch / fix

  • Apple iOS iOS 13.4 and iPadOS 13.4
  • Apple tvOS tvOS 13.4
  • Apple Safari Safari 13.1
  • Apple iTunes for Windows iTunes for Windows 12.10.5
  • Apple iCloud for Windows iCloud for Windows 10.9.3
  • Apple iCloud for Windows (Legacy) iCloud for Windows 7.18

Is CVE-2020-3887 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

1.19% chance of exploitation in the next 30 days, higher than 68% 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:N/I:L/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

Affected products

  • Apple iOS
  • Apple tvOS
  • Apple Safari
  • Apple iTunes for Windows
  • Apple iCloud for Windows
  • Apple iCloud for Windows (Legacy)

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.