If a malicious site repeatedly triggers a modal authentication prompt, eventually the browser UI will become non-responsive, requiring shutdown through the operating system
Published Jun 11, 2018
7.5
HIGHCVSS 3.0
EPSS 2.28%
Description
If a malicious site repeatedly triggers a modal authentication prompt, eventually the browser UI will become non-responsive, requiring shutdown through the operating system. This is a denial of service (DOS) attack. This vulnerability affects Firefox < 52 and Thunderbird < 52.
Affected products
-
- Version unspecifiedStatusaffectedConstraints<52
- Version
-
- Version unspecifiedStatusaffectedConstraints<52
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox | n/a |
| ||||||
| Mozilla | Thunderbird | n/a |
|
- < 52.0
- < 52.0
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:C
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
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (16 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.28% (0.02276) | 82.48th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.37% (0.02365) | 81.54th | v5 (v2026.06.15) |
| Nov 21, 2025 | 0.91% (0.00907) | 75.05th | v4 (v2025.03.14) |
| Nov 18, 2025 | 2.17% (0.02169) | 82.95th | v4 (v2025.03.14) |
| Sep 1, 2025 | 0.91% (0.00907) | 74.97th | v4 (v2025.03.14) |
| Mar 30, 2025 | 2.25% (0.02253) | 83.11th | v4 (v2025.03.14) |
| Mar 29, 2025 | 3.35% (0.03348) | 78.68th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.10% (0.02105) | 82.89th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.15% (0.00148) | 52.25th | v3 (v2023.03.01) |
| Nov 2, 2023 | 0.21% (0.00210) | 58.80th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.35% (0.00353) | 68.40th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.38% (0.00384) | 68.82th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.02% (0.01018) | 40.69th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.02% (0.01018) | 19.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.65% (0.01646) | 33.91th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.65% (0.01646) | 0.00th | v1 |
No CWE recorded.
References (5)
- http://www.securityfocus.com/bid/96692 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1037966 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1312243 x_refsource_CONFIRMExploitIssue TrackingPatch
- https://www.mozilla.org/security/advisories/mfsa2017-05/ x_refsource_CONFIRMVendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-09/ x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/96692 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1037966 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| https://bugzilla.mozilla.org/show_bug.cgi?id=1312243 | x_refsource_CONFIRMExploitIssue TrackingPatch | |
| https://www.mozilla.org/security/advisories/mfsa2017-05/ | x_refsource_CONFIRMVendor Advisory | |
| https://www.mozilla.org/security/advisories/mfsa2017-09/ | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.