CVE-2019-9815 is a high-severity timing attack vulnerability, akin to Spectre, affecting Mozilla Firefox, Firefox ESR, and Thunderbird on macOS versions prior to 10.14.5. This flaw allows an attacker to potentially extract sensitive information and compromise system integrity and availability if hyperthreading is not disabled. While the CVSS score is 8.1 (High), exploitation requires high attack complexity, and there is no evidence of active exploitation, public exploit code, or significant community discussion. Apple addressed this by providing an option to disable hyperthreading for untrusted code in macOS 10.14.5, which Firefox now utilizes.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 67.0CPE matchmatch criteria | cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* | ||
< 60.7CPE matchmatch criteria | cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* | ||
< 60.7CPE matchmatch criteria | cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
No social media mentions found for this CVE.
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No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.