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CVE-2020-9809

An information disclosure issue was addressed with improved state management. This issue is fixed in iOS 13.5 and iPadOS 13.5, macOS…

Description

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 malicious application may be able to determine kernel memory layout.

Timeline

  1. ID reserved

    By apple

  2. · 3 months later

    Published

  3. · 4 years later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2020-9809, by who scored it
Scored byCVSSScoreVector
NVDNVD · Modified3.1Medium5.5CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
EPSS (exploitation in 30 days)
1.0% · top 35% of all CVEs (11 Nov 2026)
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.

Affected products

  • Apple · iOS

    • affected unspecified – < iOS 13.5 and iPadOS 13.5

  • Apple · macOS

    • affected unspecified – < macOS Catalina 10.15.5

  • Apple · tvOS

    • affected unspecified – < tvOS 13.4.5

  • Apple · watchOS

    • affected unspecified – < watchOS 6.2.5

References

4

Sources

The same CVE in the primary databases and aggregators, to check against.

Badge for a README or a ticket

CVE-2020-9809 badge
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Record last updated .