CVE-2021-1829 json
A type confusion issue was addressed with improved state handling.
published 2021-09-08 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-7293
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.3%
- EPSS 2.3% chance of exploitation in 30 days, percentile 83%
- public exploits
- 0
- none known
Summary
A type confusion issue was addressed with improved state handling. This issue is fixed in macOS Big Sur 11.3. An application may be able to execute arbitrary code with kernel privileges.
Patch / fix
- Apple macOS 11.3
Exploit prediction
2.27% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 10.0 | AV:N/AC:L/Au:N/C:C/I:C/A:C |
Affected products
- Apple macOS
Classification
- Weakness
-
- CWE-843 Access of Resource Using Incompatible Type
References
-
support.apple.com
/en-us/HT212325
release-notes, vendor-advisory
Sources
- CVE List CVE-2021-1829
- NVD CVE-2021-1829
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