Vulnerability in Apple macOS
CVE-2021-30827
A permissions issue existed. This issue was addressed with improved permission validation. This issue is fixed in Security Update 2021-005 Catalina, macOS Big Sur 11.6. A local attacker may be able to elevate their privileges.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.002 (14.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 14th percentile — 14.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Apple macOS — versions unspecified
- Apple Mac OS X — versions 10.15.7
Weakness classification (CWE)
Public proof-of-concept exploits
References
- support.apple.com/en-us/HT212804 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/HT212805 (Release Notes, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-30827?
- CVE-2021-30827 is a high-severity vulnerability in Apple macOS, classified under Improper Preservation of Permissions. CVSS score: 7.8/10. Published 2021-10-19.
- How severe is CVE-2021-30827?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2021-30827 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.