Skip to content
Fencer Intel
medium 4.5

CVE-2020-9978 json

This issue was addressed with improved setting propagation.

published 5y ago modified 4mo ago also EUVD-2020-30757

cvss
4.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 45%
public exploits
0
none known

Summary

This issue was addressed with improved setting propagation. This issue is fixed in macOS Big Sur 11.0.1, tvOS 14.0, macOS Big Sur 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave, watchOS 7.0, iOS 14.0 and iPadOS 14.0. An attacker in a privileged network position may be able to unexpectedly alter application state.

Patch / fix

  • Apple tvOS 14.0
  • Apple watchOS 7.0
  • Apple iOS and iPadOS 14.0
  • Apple macOS 11.0, 11.1

Is CVE-2020-9978 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.

Check with Fencer

Exploit prediction

0.54% chance of exploitation in the next 30 days, higher than 45% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 4.5 CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
NVD 2.0 2.7 AV:A/AC:L/Au:S/C:N/I:P/A:N

Affected products

  • Apple tvOS
  • Apple watchOS
  • Apple iOS and iPadOS
  • Apple macOS

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.