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Low severity3.3NVD Advisory· Published Apr 2, 2021· Updated Jun 17, 2026

CVE-2021-1771

CVE-2021-1771

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

2
  • Apple Inc./macOSllm-fuzzy2 versions
    Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave+ 1 more
    • (no CPE)range: Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave
    • (no CPE)range: unspecified

Patches

Vulnerability mechanics

References

1

News mentions

0

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