CVE-2021-30738
MEDIUM
5.5
CVSS Score
Published: September 8, 2021 at 01:43 PM UTC
Updated: June 17, 2026 at 03:50 AM UTC
1 product affected across 1 vendormacOS
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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.3%
Description
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 11.4v < 202110.14.0 ≤ v ≤ 10.14.511.0.1 ≤ v < 11.410.14.610.14.6 security_update_2019-110.14.6 security_update_2019-210.14.6 security_update_2019-410.14.6 security_update_2019-510.14.6 security_update_2019-610.14.6 security_update_2019-710.14.6 security_update_2020-110.14.6 security_update_2020-210.14.6 security_update_2020-310.14.6 security_update_2020-410.14.6 security_update_2020-510.14.6 security_update_2020-610.14.6 security_update_2020-710.14.6 security_update_2021-110.14.6 security_update_2021-210.14.6 security_update_2021-310.14.6 supplemental_update10.14.6 supplemental_update_2
Affected range stops below 11.4, so it looks safe — our inference, not a vendor statement
Affected range stops below 2021, 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 (2)
CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- HIGH
- Availability
- NONE
Vector?
Quick Info
StatusMODIFIED
CWE
NVD-CWE-noinfo
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