Vulnerability in Apple macOS
CVE-2021-30688
A malicious application may be able to break out of its sandbox. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-003 Catalina. A path handling issue was addressed with improved validation.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (19.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 20th percentile — 19.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Apple macOS — versions unspecified
- Apple Mac OS X — versions 10.15.7
Public proof-of-concept exploits
References
- support.apple.com/en-us/HT212529 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/HT212530 (Release Notes, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-30688?
- CVE-2021-30688 is a high-severity vulnerability in Apple macOS. CVSS score: 8.8/10. Published 2021-09-08.
- How severe is CVE-2021-30688?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2021-30688 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.