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Fencer Vulns
medium 5.5

CVE-2021-30947 json

An access issue was addressed with additional sandbox restrictions.

published 2021-08-24 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-17864

cvss
5.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 58%
public exploits
0
none known

Summary

An access issue was addressed with additional sandbox restrictions. This issue is fixed in macOS Big Sur 11.6.2, tvOS 15.2, macOS Monterey 12.1, iOS 15.2 and iPadOS 15.2, watchOS 8.3. An application may be able to access a user's files.

Patch / fix

  • Apple watchOS 8.3
  • Apple iOS and iPadOS 15.2
  • Apple macOS 11.6, 12.1, 15.2

Exploit prediction

0.87% chance of exploitation in the next 30 days, higher than 58% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:P/I:N/A:N

Affected products

  • Apple watchOS
  • Apple iOS and iPadOS
  • Apple macOS

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.