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LOW · 3.3

CVE-2021-1771

This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave. A user that is removed from an iMessage gr...

Vulnerability Description

This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave. A user that is removed from an iMessage group could rejoin the group.

CVSS Score

3.3

LOW

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE

Affected Products

VendorProductVersions
AppleMac Os X>= 10.14, < 10.14.6
AppleMacos>= 11.0, < 11.2

References

FAQ

What is CVE-2021-1771?

CVE-2021-1771 is a vulnerability with a CVSS score of 3.3 (LOW). This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave. A user that is removed from an iMessage gr...

How severe is CVE-2021-1771?

CVE-2021-1771 has been rated LOW with a CVSS base score of 3.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-1771?

Check the references section above for vendor advisories and patch information. Affected products include: Apple Mac Os X, Apple Macos.