HIGH
firefox: special resource URI parsing leading to denial of service
Published Feb 28, 2019
7.5
HIGHCVSS 3.0
EPSS 2.51%
Description
Some special resource URIs will cause a non-exploitable crash if loaded with optional parameters following a '?' in the parsed string. This could lead to denial of service (DOS) attacks. This vulnerability affects Firefox < 63.
Affected products
-
- Version unspecifiedStatusaffectedConstraints<63
- Version
Configuration 2
OR
- 14.04
- 16.04
- 18.04
- 18.10
No data.
Red Hat Enterprise Linux 6
firefox
Will not fix
Red Hat Enterprise Linux 7
firefox
Will not fix
Red Hat Enterprise Linux 8
firefox
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | firefox | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | firefox | Will not fix | n/a |
| Red Hat Enterprise Linux 8 | firefox | Will not fix | n/a |
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.
7.5 HIGH NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
5.0 MEDIUM NVD
AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
2.51% 0.02508
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.02508
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 (17 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.51% (0.02508) | 84.19th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.29% (0.02287) | 80.87th | v5 (v2026.06.15) |
| Nov 21, 2025 | 0.93% (0.00930) | 75.38th | v4 (v2025.03.14) |
| Nov 18, 2025 | 3.02% (0.03024) | 85.40th | v4 (v2025.03.14) |
| Aug 20, 2025 | 0.78% (0.00781) | 72.73th | v4 (v2025.03.14) |
| Mar 30, 2025 | 2.55% (0.02550) | 84.13th | v4 (v2025.03.14) |
| Mar 29, 2025 | 7.66% (0.07662) | 86.20th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.55% (0.02550) | 84.45th | v4 (v2025.03.14) |
| Dec 17, 2024 | 0.47% (0.00469) | 75.27th | v3 (v2023.03.01) |
| Mar 28, 2024 | 1.24% (0.01245) | 85.21th | v3 (v2023.03.01) |
| Feb 22, 2024 | 1.23% (0.01226) | 84.94th | v3 (v2023.03.01) |
| Sep 3, 2023 | 1.25% (0.01249) | 83.86th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.86% (0.01858) | 86.48th | 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 | 1.55% (0.01550) | 33.66th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.55% (0.01550) | 0.00th | v1 |
Weaknesses (1)
References (10)
- http://www.securityfocus.com/bid/105721 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1041944 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2018-12401 Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1422456 x_refsource_CONFIRMIssue TrackingPermissions RequiredVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1693626 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2018-12401
- https://usn.ubuntu.com/3801-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2018-12401
- https://www.mozilla.org/en-US/security/advisories/mfsa2018-26/#CVE-2018-12401
- https://www.mozilla.org/security/advisories/mfsa2018-26/ x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/105721 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1041944 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/security/cve/CVE-2018-12401 | Vendor Advisory | |
| https://bugzilla.mozilla.org/show_bug.cgi?id=1422456 | x_refsource_CONFIRMIssue TrackingPermissions RequiredVendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1693626 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2018-12401 | ||
| https://usn.ubuntu.com/3801-1/ | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2018-12401 | ||
| https://www.mozilla.org/en-US/security/advisories/mfsa2018-26/#CVE-2018-12401 | ||
| https://www.mozilla.org/security/advisories/mfsa2018-26/ | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mozilla
Published Feb 28, 2019
Updated Aug 5, 2024
Reserved Jun 14, 2018
Link CVE-2018-12401
CISA Vulnrichment
Updated n/a