CVE-2022-40959
6.5
MEDIUM
CVSS 3.1
EPSS 0.13%
Description
During iframe navigation, certain pages did not have their FeaturePolicy fully initialized leading to a bypass that leaked device permissions into untrusted subdocuments. This vulnerability affects Firefox ESR < 102.3, Thunderbird < 102.3, and Firefox < 105.
How to fix CVE-2022-40959
To remediate CVE-2022-40959, upgrade the affected package to a fixed version below.
- Debian/firefox-esr—upgrade to 102.3.0esr-1~deb11u1 or later
- —upgrade to 1:102.3.0-1~deb11u1 or later
Is CVE-2022-40959 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 102.3.0esr-1~deb11u1
- from 0, < 1:102.3.0-1~deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N |