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CVE-2021-1876

HIGH
8.8
CVSS Score
Published: September 8, 2021 at 02:49 PM UTC
Updated: June 17, 2026 at 03:32 AM UTC
1 product affected across 1 vendormacOS

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Severity
HIGH8.8
Exploit prediction
EPSS 1%

Description

A use after free issue was addressed with improved memory management. This issue is fixed in macOS Big Sur 11.3, Security Update 2021-002 Catalina, Security Update 2021-003 Mojave. Processing maliciously crafted web content may lead to arbitrary code execution.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (3)

x_refsource_MISCVendor Advisory
Source: [email protected]
https://support.apple.com/en-us/HT212325
x_refsource_MISCVendor Advisory
Source: [email protected]
https://support.apple.com/en-us/HT212326
x_refsource_MISCVendor Advisory
Source: [email protected]
https://support.apple.com/en-us/HT212327

CVSS

8.8HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-416

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