Vulnerability in Mozilla Firefox

CVE-2019-9806

A vulnerability exists during authorization prompting for FTP transaction where successive modal prompts are displayed and cannot be immediately dismissed. This allows for a denial of service (DOS) attack. This vulnerability affects Firefox < 66.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.011 (64.0th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 64th percentile — 64.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2019-9806: held from 0.010 to 0.011.

EPSS over last 30 days · oldest: 0.010 · newest: 0.011 · change: +0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2019-9806?
CVE-2019-9806 is a high-severity vulnerability in Mozilla Firefox, classified under CWE-399. CVSS score: 7.5/10. Published 2019-04-26.
How severe is CVE-2019-9806?
High severity. CVSS v3 base score is 7.5 out of 10.