CVE-2019-9809

If the source for resources on a page is through an FTP connection, it is possible to trigger a series of modal alert messages for these resources through invalid credentials or locations. These messages cannot be immediately dismissed, allowing for a denial of service (DOS) attack. This vulnerability affects Firefox < 66.

Affected

Mozilla · Firefox

CVSS v3.0 NVD

7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v2.0 NVD

5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P

EPSS

1.64% chance of exploitation in the next 30 days, 76th percentile

Published

2019-04-26

Updated

2024-08-04

Proof-of-concept exploits (1)

• https://bugzilla.mozilla.org/show_bug.cgi?id=1282430

Security advisories

• https://bugzilla.mozilla.org/show_bug.cgi?id=1523249
• https://www.mozilla.org/security/advisories/mfsa2019-07

References

• CVE Record
• NVD entry