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Fencer Vulns
medium 5.5

CVE-2020-9811 json

An information disclosure issue was addressed with improved state management.

published 2020-06-09 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-30590

cvss
5.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.0%
EPSS 1.0% chance of exploitation in 30 days, percentile 61%
public exploits
0
none known

Summary

An information disclosure issue was addressed with improved state management. This issue is fixed in iOS 13.5 and iPadOS 13.5, macOS Catalina 10.15.5, tvOS 13.4.5, watchOS 6.2.5. A local user may be able to read kernel memory.

Patch / fix

  • Apple iOS iOS 13.5 and iPadOS 13.5
  • Apple macOS macOS Catalina 10.15.5
  • Apple tvOS tvOS 13.4.5
  • Apple watchOS watchOS 6.2.5

Exploit prediction

0.95% chance of exploitation in the next 30 days, higher than 61% 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 iOS
  • Apple macOS
  • Apple tvOS
  • Apple watchOS

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.