CVE-2020-9901

HIGH
7.8
CVSS Score
Published: October 22, 2020 at 06:03 PM UTC
Updated: June 17, 2026 at 03:28 AM UTC
4 products affected across 1 vendormacOSiPhone OSiPadOS

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Severity
HIGH7.8
Exploit prediction
EPSS 0.3%

Description

An issue existed within the path validation logic for symlinks. This issue was addressed with improved path sanitization. This issue is fixed in iOS 13.6 and iPadOS 13.6, macOS Catalina 10.15.6, tvOS 13.4.8. 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 < 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 < 10.15.6v < macOS Catalina 10.15.6
Affected range stops below 10.15.6, so it looks safe — our inference, not a vendor statement
Affected range stops below macOS Catalina 10.15.6, 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

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/kb/HT211288
x_refsource_MISCVendor Advisory
https://support.apple.com/kb/HT211289
x_refsource_MISCVendor Advisory
https://support.apple.com/kb/HT211290

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-59

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