CVE-2019-11743
3.7
LOW
CVSS 3.1
EPSS 0.92%
Description
Navigation events were not fully adhering to the W3C's "Navigation-Timing Level 2" draft specification in some instances for the unload event, which restricts access to detailed timing attributes to only be same-origin. This resulted in potential cross-origin information exposure of history through timing side-channel attacks. This vulnerability affects Firefox < 69, Thunderbird < 68.1, Thunderbird < 60.9, Firefox ESR < 60.9, and Firefox ESR < 68.1.
How to fix CVE-2019-11743
To remediate CVE-2019-11743, upgrade the affected package to a fixed version below.
- —upgrade to 68.1.0esr-1 or later
- —upgrade to 1:60.9.0-1 or later
Is CVE-2019-11743 being exploited?
Low — EPSS is 0.9%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 68.1.0esr-1
- from 0, < 1:60.9.0-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | LOW3.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N |