CVE-2020-27899

HIGH
7.8
CVSS Score
Published: April 2, 2021 at 05:27 PM UTC
Updated: June 17, 2026 at 03:09 AM UTC
5 products affected across 1 vendormacOSiPhone OSiPadOS

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Severity
HIGH7.8
Exploit prediction
EPSS 0.3%

Description

A use after free issue was addressed with improved memory management. This issue is fixed in iOS 14.2 and iPadOS 14.2, macOS Big Sur 11.0.1, watchOS 7.1, tvOS 14.2. A local attacker may be able to elevate their privileges.

Affected

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

v < 14.2
Affected range stops below 14.2, so it looks safe — our inference, not a vendor statement
v < 14.2
Affected range stops below 14.2, so it looks safe — our inference, not a vendor statement
v < 11.0v < 11.0.1
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
v < 14.2
Affected range stops below 14.2, so it looks safe — our inference, not a vendor statement
v < 7.1
Affected range stops below 7.1, 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:

References (4)

x_refsource_MISCVendor Advisory
https://support.apple.com/en-us/HT211928
x_refsource_MISCVendor Advisory
https://support.apple.com/en-us/HT211929
x_refsource_MISCVendor Advisory
https://support.apple.com/en-us/HT211930
x_refsource_MISCVendor Advisory
https://support.apple.com/en-us/HT211931

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-416

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