firefox: memory safety bugs showing evidence of memory corruption leading to run arbitrary code
Published Feb 28, 2019
8.8
HIGHCVSS 3.0
EPSS 1.13%
Description
Mozilla developers and community members reported memory safety bugs present in Firefox 63. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox < 64.
Affected products
-
- Version unspecifiedStatusaffectedConstraints<64
- Version
Configuration 2
- 14.04
- 16.04
- 18.04
- 18.10
No data.
Red Hat Enterprise Linux 5
firefox
Not affected
Red Hat Enterprise Linux 6
firefox
Not affected
Red Hat Enterprise Linux 7
firefox
Not affected
Red Hat Enterprise Linux 8
firefox
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | firefox | Not affected | n/a |
| Red Hat Enterprise Linux 6 | firefox | Not affected | n/a |
| Red Hat Enterprise Linux 7 | firefox | Not affected | n/a |
| Red Hat Enterprise Linux 8 | firefox | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This flaw did not affect the Firefox 60 ESR stream.
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:R/S:U/C:H/I:H/A:H
AV:N/AC:M/Au:N/C:P/I:P/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 2, 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 (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 1.13% (0.01134) | 65.30th | v5 (v2026.06.15) |
| Sep 20, 2026 | 1.12% (0.01124) | 64.82th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.50% (0.00499) | 76.53th | v3 (v2023.03.01) |
| Feb 22, 2024 | 0.50% (0.00499) | 75.66th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.48% (0.00482) | 75.19th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.48% (0.00482) | 72.15th | 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 | 0.85% (0.00850) | 24.96th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.85% (0.00850) | 0.00th | v1 |
References (9)
- http://www.securityfocus.com/bid/106167 vdb-entryx_refsource_BIDThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2018-12406 Vendor Advisory
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=1456947%2C1475669%2C1504816%2C1502886%2C1500064%2C1500310%2C1500696%2C1499198%2C1434490%2C1481745%2C1458129 x_refsource_CONFIRMExploitIssue TrackingVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1692732 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2018-12406
- https://usn.ubuntu.com/3844-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2018-12406
- https://www.mozilla.org/en-US/security/advisories/mfsa2018-29/#CVE-2018-12406
- https://www.mozilla.org/security/advisories/mfsa2018-29/ x_refsource_CONFIRMExploitVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/106167 | vdb-entryx_refsource_BIDThird Party Advisory | |
| https://access.redhat.com/security/cve/CVE-2018-12406 | Vendor Advisory | |
| https://bugzilla.mozilla.org/buglist.cgi?bug_id=1456947%2C1475669%2C1504816%2C1502886%2C1500064%2C1500310%2C1500696%2C1499198%2C1434490%2C1481745%2C1458129 | x_refsource_CONFIRMExploitIssue TrackingVendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1692732 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2018-12406 | ||
| https://usn.ubuntu.com/3844-1/ | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2018-12406 | ||
| https://www.mozilla.org/en-US/security/advisories/mfsa2018-29/#CVE-2018-12406 | ||
| https://www.mozilla.org/security/advisories/mfsa2018-29/ | x_refsource_CONFIRMExploitVendor Advisory |
Change history (0)
No recorded changes yet.