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
Published Apr 26, 2019
7.5
HIGHCVSS 3.0
EPSS 1.64%
Description
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 products
-
- Version unspecifiedStatusaffectedConstraints<66
- Version
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AV:N/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.64% (0.01641) | 75.53th | v5 (v2026.06.15) |
| Sep 20, 2026 | 1.64% (0.01641) | 75.33th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.26% (0.00264) | 66.42th | v3 (v2023.03.01) |
| Apr 19, 2024 | 0.26% (0.00264) | 65.73th | v3 (v2023.03.01) |
| Jan 24, 2024 | 0.19% (0.00193) | 57.21th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.19% (0.00193) | 55.21th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00954) | 36.37th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.95% (0.00954) | 32.50th | v2 (v2022.01.01) |
| Feb 4, 2022 | 5.74% (0.05736) | 77.22th | v2 (v2022.01.01) |
| Feb 3, 2022 | 4.49% (0.04486) | 75.02th | v1 |
| Jan 6, 2022 | 4.49% (0.04486) | 74.80th | v1 |
| Jan 5, 2022 | 1.04% (0.01036) | 63.73th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.04% (0.01036) | 0.00th | v1 |
References (3)
- https://bugzilla.mozilla.org/show_bug.cgi?id=1282430 x_refsource_MISCExploitIssue TrackingPatchVendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1523249 x_refsource_MISCIssue TrackingPermissions RequiredVendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2019-07/ x_refsource_MISCVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://bugzilla.mozilla.org/show_bug.cgi?id=1282430 | x_refsource_MISCExploitIssue TrackingPatchVendor Advisory | |
| https://bugzilla.mozilla.org/show_bug.cgi?id=1523249 | x_refsource_MISCIssue TrackingPermissions RequiredVendor Advisory | |
| https://www.mozilla.org/security/advisories/mfsa2019-07/ | x_refsource_MISCVendor Advisory |
Change history (0)
No recorded changes yet.