CVE-2021-30738 json
A malicious application may be able to overwrite arbitrary files.
published 5y ago modified 4mo ago also EUVD-2021-17655
- cvss
- 5.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 23%
- public exploits
- 0
- none known
Summary
A malicious application may be able to overwrite arbitrary files. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-004 Mojave. An issue with path validation logic for hardlinks was addressed with improved path sanitization.
Patch / fix
- Apple macOS 11.4, 2021
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0.31% chance of exploitation in the next 30 days, higher than 23% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N |
| NVD | 2.0 | 2.1 | AV:L/AC:L/Au:N/C:N/I:P/A:N |
Affected products
- Apple macOS
References
-
support.apple.com
/en-us/HT212529
vendor-advisory
-
support.apple.com
/en-us/HT212531
vendor-advisory
Sources
- CVE List CVE-2021-30738
- NVD CVE-2021-30738
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