CVE-2020-9945

MEDIUM
4.3
CVSS Score
Published: December 8, 2020 at 07:19 PM UTC
Updated: June 17, 2026 at 03:28 AM UTC
2 products affected across 1 vendormacOSSafari

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Severity
MEDIUM4.3
Exploit prediction
EPSS 1%

Description

A spoofing issue existed in the handling of URLs. This issue was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.0.1, Safari 14.0.1. Visiting a malicious website may lead to address bar spoofing.

Affected

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

v < 11.0v < 11.0.1v < 14.0
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
v < 14.0.1
Affected range stops below 14.0.1, 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 (3)

Mailing Listx_refsource_FULLDISCThird Party Advisory
http://seclists.org/fulldisclosure/2020/Dec/32
x_refsource_MISCRelease NotesVendor Advisory
https://support.apple.com/en-us/HT211931
x_refsource_MISCRelease NotesVendor Advisory
https://support.apple.com/en-us/HT211934

CVSS

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

Quick Info

StatusMODIFIED
CWE
CWE-1021

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