CVE-2021-1771
LOW
3.3
CVSS Score
Published: April 2, 2021 at 05:56 PM UTC
Updated: June 17, 2026 at 03:32 AM UTC
1 product affected across 1 vendormacOS
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Severity
LOW3.3
Exploit prediction
EPSS 0.6%
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 11.210.14 ≤ v < 10.14.610.15 ≤ v < 10.15.711.0 ≤ v < 11.210.14.610.14.6 security_update_2019-00110.14.6 security_update_2019-00210.14.6 security_update_2020-00110.14.6 security_update_2020-00210.14.6 security_update_2020-00310.14.6 security_update_2020-00410.14.6 security_update_2020-00510.14.6 security_update_2020-00610.14.6 security_update_2020-00710.14.6 supplemental_update10.14.6 supplemental_update_210.15.710.15.7 supplemental_update
Affected range stops below 10.14.6, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.15.7, so it looks safe — our inference, not a vendor statement
Affected range stops below 11.2, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (1)
x_refsource_MISCRelease NotesVendor Advisory
Source: [email protected]
https://support.apple.com/en-us/HT212147CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- LOW
- Availability
- NONE
Vector?
Quick Info
StatusMODIFIED
CWE
NVD-CWE-noinfo
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