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.

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.

EPSS: 0.011 (61.7th percentile) — read the EPSS interpretation.

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.

Affected products

Mozilla Firefox — versions unspecified

Weakness classification (CWE)

CWE-399

References

security@mozilla.org (x_refsource_MISC, Vendor Advisory)
security@mozilla.org (Permissions Required, x_refsource_MISC, Issue Tracking, Vendor Advisory)

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.