CVE-2020-9909

MEDIUM
5.9
CVSS Score
Published: October 16, 2020 at 04:43 PM UTC
Updated: June 17, 2026 at 03:28 AM UTC
4 products affected across 1 vendoriPhone OSiPadOStvOS

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Severity
MEDIUM5.9
Exploit prediction
EPSS 2%

Description

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in iOS 13.6 and iPadOS 13.6, tvOS 13.4.8, watchOS 6.2.8. An attacker that has already achieved kernel code execution may be able to bypass kernel memory mitigations.

Affected

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

v < 13.6
Affected range stops below 13.6, so it looks safe — our inference, not a vendor statement
v < 13.6v < iOS 13.6 and iPadOS 13.6
Affected range stops below 13.6, so it looks safe — our inference, not a vendor statement
Affected range stops below iOS 13.6 and iPadOS 13.6, so it looks safe — our inference, not a vendor statement
v < 13.4.8v < tvOS 13.4.8
Affected range stops below 13.4.8, so it looks safe — our inference, not a vendor statement
Affected range stops below tvOS 13.4.8, so it looks safe — our inference, not a vendor statement
v < 6.2.8v < watchOS 6.2.8
Affected range stops below 6.2.8, so it looks safe — our inference, not a vendor statement
Affected range stops below watchOS 6.2.8, 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 (3)

x_refsource_MISCVendor Advisory
https://support.apple.com/HT211288
x_refsource_MISCVendor Advisory
https://support.apple.com/HT211290
x_refsource_MISCVendor Advisory
https://support.apple.com/HT211291

CVSS

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

Quick Info

StatusMODIFIED
CWE
CWE-125

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