CVE-2021-30943 json
An issue in the handling of group membership was resolved with improved logic.
published 2021-08-24 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-17860
- cvss
- 4.3
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 56%
- public exploits
- 0
- none known
Summary
An issue in the handling of group membership was resolved with improved logic. This issue is fixed in iOS 15.2 and iPadOS 15.2, watchOS 8.3, macOS Monterey 12.1. A malicious user may be able to leave a messages group but continue to receive messages in that group.
Patch / fix
- Apple watchOS 8.3, 12.1, 15.2
Exploit prediction
0.80% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
| NVD | 2.0 | 4.0 | AV:N/AC:L/Au:S/C:P/I:N/A:N |
Affected products
- Apple watchOS
Classification
- Weakness
-
- CWE-613 DEPRECATED: Insufficient Session Expiration
References
Sources
- CVE List CVE-2021-30943
- NVD CVE-2021-30943
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