Out-of-bounds Read in Apple macOS
CVE-2020-9918
An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15.6, tvOS 13.4.8, watchOS 6.2.8. A remote attacker may be able to cause unexpected system termination or corrupt kernel memory.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.030 (86.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 86.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.030 · newest: 0.030 · change: 0.000
Affected products
- Apple macOS — versions unspecified
- Apple Mac OS X
- Apple tvOS — versions unspecified
- Apple watchOS — versions unspecified
Weakness classification (CWE)
References
- support.apple.com/HT211289 (Release Notes, Vendor Advisory)
- support.apple.com/HT211288 (Release Notes, Vendor Advisory)
- support.apple.com/HT211290 (Release Notes, Vendor Advisory)
- support.apple.com/HT211291 (Release Notes, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-9918?
- CVE-2020-9918 is a critical-severity vulnerability in Apple macOS, classified under Out-of-bounds Read. CVSS score: 9.8/10. Published 2020-10-16.
- How severe is CVE-2020-9918?
- Critical severity. CVSS v3 base score is 9.8 out of 10.