CVE-2020-9837

HIGH
7.5
CVSS Score
Published: June 9, 2020 at 04:16 PM UTC
Updated: June 17, 2026 at 03:28 AM UTC
4 products affected across 1 vendormacOSiPhone OSiPadOS

Using iOS by Apple?

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

Real-time alertsTrack your software stackFree plan available
Severity
HIGH7.5
Exploit prediction
EPSS 1%

Description

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in iOS 13.5 and iPadOS 13.5, macOS Catalina 10.15.5, tvOS 13.4.5. A remote attacker may be able to leak memory.

Affected

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

v < 13.5
Affected range stops below 13.5, so it looks safe — our inference, not a vendor statement
v < 13.5v < iOS 13.5 and iPadOS 13.5
Affected range stops below 13.5, so it looks safe — our inference, not a vendor statement
Affected range stops below iOS 13.5 and iPadOS 13.5, so it looks safe — our inference, not a vendor statement
v < 10.15.5v < macOS Catalina 10.15.5
Affected range stops below 10.15.5, so it looks safe — our inference, not a vendor statement
Affected range stops below macOS Catalina 10.15.5, so it looks safe — our inference, not a vendor statement
v < 13.4.5v < tvOS 13.4.5
Affected range stops below 13.4.5, so it looks safe — our inference, not a vendor statement
Affected range stops below tvOS 13.4.5, 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/HT211168
x_refsource_MISCVendor Advisory
https://support.apple.com/HT211170
x_refsource_MISCVendor Advisory
https://support.apple.com/HT211171

CVSS

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

Quick Info

StatusMODIFIED
CWE
CWE-125

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card