CVE-2021-1771 in macOS

Summary

by MITRE • 04/03/2021

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.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

• Reservation: 12/08/2020
• Disclosure: 04/03/2021
• Moderation: accepted
• Entry: VDB-169100
• CPE: ready
• CWE: CWE-284 (confirmed)
• CVSS: 5.6 (VulDB)
• EPSS: 0.00546
• KEV: no
• Activities: very low
• Sector: Lawfirm, Government, ...

Sources

• MITRE: https://www.cve.org/CVERecord?id=CVE-2021-1771
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-1771
• CVE Details: https://www.cvedetails.com/cve/CVE-2021-1771/