CVE-2019-9819 — Type Confusion in Mozilla Firefox
Severity
9.8CRITICALNVD
EPSS
0.6%
top 31.89%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedJul 23
Latest updateMay 24
Description
A vulnerability where a JavaScript compartment mismatch can occur while working with the fetch API, resulting in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.7, Firefox < 67, and Firefox ESR < 60.7.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 3.9 | Impact: 5.9
Affected Packages12 packages
🔴Vulnerability Details
6GHSA▶
GHSA-cff8-554c-8rv2: A vulnerability where a JavaScript compartment mismatch can occur while working with the fetch API, resulting in a potentially exploitable crash↗2022-05-24
OSV▶
CVE-2019-9819: A vulnerability where a JavaScript compartment mismatch can occur while working with the fetch API, resulting in a potentially exploitable crash↗2019-07-23