CVE-2016-9900
7.5
HIGH
CVSS 3.1
EPSS 1.4%
Description
External resources that should be blocked when loaded by SVG images can bypass security restrictions through the use of "data:" URLs. This could allow for cross-domain data leakage. This vulnerability affects Firefox < 50.1, Firefox ESR < 45.6, and Thunderbird < 45.6.
How to fix CVE-2016-9900
To remediate CVE-2016-9900, upgrade the affected package to a fixed version below.
- Debian/firefox-esr—upgrade to 45.6.0esr-1 or later
Is CVE-2016-9900 being exploited?
Low — EPSS is 1.4%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 45.6.0esr-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |