CVE-2020-9949

HIGH

7.8

CVSS Score

Published: December 8, 2020 at 07:23 PM UTC

Updated: June 17, 2026 at 03:28 AM UTC

5 products affected across 1 vendormacOSiPhone OSiPadOS

Using macOS by Apple?

Get instant alerts when new vulnerabilities affect macOS - before attackers find them.

Real-time alertsTrack your software stackFree plan available

Start Free Sign In

Severity

HIGH7.8

Exploit prediction

EPSS 2%

Description

A use after free issue was addressed with improved memory management. This issue is fixed in macOS Big Sur 11.0.1, watchOS 7.0, iOS 14.0 and iPadOS 14.0, macOS Catalina 10.15.6, Security Update 2020-004 Mojave, Security Update 2020-004 High Sierra, tvOS 14.0. An application may be able to execute arbitrary code with kernel privileges.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

iPadOS · Apple

95%

v < 14.0

Affected range stops below 14.0, so it looks safe — our inference, not a vendor statement

iPhone OS · Apple

95%

v < 14.0

Affected range stops below 14.0, so it looks safe — our inference, not a vendor statement

macOS · Apple

95%

v < 10.15v < 10.15.6v < 11.0v < 14.0v < 7.011.0.0 ≤ v < 11.0.1

Affected range stops below 10.15, so it looks safe — our inference, not a vendor statement

Affected range stops below 10.15.6, so it looks safe — our inference, not a vendor statement

Affected range stops below 11.0, so it looks safe — our inference, not a vendor statement

Affected range stops below 11.0.1, so it looks safe — our inference, not a vendor statement

Affected range stops below 14.0, so it looks safe — our inference, not a vendor statement

Affected range stops below 7.0, so it looks safe — our inference, not a vendor statement

tvOS · Apple

95%

v < 14.0

Affected range stops below 14.0, so it looks safe — our inference, not a vendor statement

watchOS · Apple

95%

v < 7.0

Affected range stops below 7.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references