CVE-2020-9866 is a critical buffer overflow vulnerability (CWE-120) affecting Apple macOS, specifically Catalina, Mojave, and High Sierra. With a CVSS score of 9.8, this flaw allows for unauthenticated, remote arbitrary code execution with high impact on confidentiality, integrity, and availability, requiring no user interaction. While highly severe, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 10.15.6CPE matchmatch criteria | cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* | ||
< 10.15CPE match | cpe:2.3:a:apple:macos:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.