What’s Vulnerable › Vulnerabilities
CVE-2021-30904
- Severity: medium (CVSS 5.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.8% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2021-08-24 · updated 2026-06-17
- Weakness: CWE-662
Description
A sync issue was addressed with improved state validation. This issue is fixed in macOS Monterey 12.0.1. A user's messages may continue to sync after the user has signed out of iMessage.
Affected products
- Apple macOS: before 12.0.1 — fixed in 12.0.1
How to fix
Upgrade to a fixed version: Apple macOS 12.0.1. Check the vendor advisory for mitigations.
References
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