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Fencer Intel
critical 9.1

CVE-2020-9906 json

A memory corruption issue was addressed with improved input validation.

published 6y ago modified 4mo ago also EUVD-2020-30685

cvss
9.1
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.7%
EPSS 4.7% chance of exploitation in 30 days, percentile 91%
public exploits
0
none known

Summary

A memory corruption issue was addressed with improved input validation. This issue is fixed in iOS 13.6 and iPadOS 13.6, macOS Catalina 10.15.6, watchOS 6.2.8. A remote attacker may be able to cause unexpected system termination or corrupt kernel memory.

Patch / fix

  • Apple iOS iOS 13.6 and iPadOS 13.6
  • Apple macOS macOS Catalina 10.15.6
  • Apple watchOS watchOS 6.2.8

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Exploit prediction

4.75% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
NVD 2.0 9.4 AV:N/AC:L/Au:N/C:N/I:C/A:C

Affected products

  • Apple iOS
  • Apple macOS
  • Apple watchOS

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.