CRITICAL
Mozilla: Memory safety bugs fixed in Firefox 61
Published Oct 18, 2018
9.8
CRITICALCVSS 3.0
EPSS 2.20%
Description
Memory safety bugs present in Firefox 60. 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 < 61.
Affected products
-
- Version unspecifiedStatusaffectedConstraints<61
- Version
Configuration 2
OR
- 14.04
- 16.04
- 17.10
- 18.04
No data.
Red Hat Enterprise Linux 6
firefox
Not affected
Red Hat Enterprise Linux 6
thunderbird
Not affected
Red Hat Enterprise Linux 7
firefox
Not affected
Red Hat Enterprise Linux 7
thunderbird
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | firefox | Not affected | n/a |
| Red Hat Enterprise Linux 6 | thunderbird | Not affected | n/a |
| Red Hat Enterprise Linux 7 | firefox | Not affected | n/a |
| Red Hat Enterprise Linux 7 | thunderbird | Not affected | 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.
9.8 CRITICAL NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
7.5 HIGH NVD
AV:N/AC:L/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
2.20% 0.02198
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.02198
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (19 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.20% (0.02198) | 81.86th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.20% (0.02198) | 80.11th | v5 (v2026.06.15) |
| Mar 30, 2025 | 2.23% (0.02235) | 83.05th | v4 (v2025.03.14) |
| Mar 29, 2025 | 6.42% (0.06425) | 84.63th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.23% (0.02235) | 83.38th | v4 (v2025.03.14) |
| Jul 20, 2024 | 1.66% (0.01662) | 87.78th | v3 (v2023.03.01) |
| Mar 10, 2024 | 1.66% (0.01662) | 87.30th | v3 (v2023.03.01) |
| Nov 16, 2023 | 1.76% (0.01764) | 86.59th | v3 (v2023.03.01) |
| Oct 12, 2023 | 1.75% (0.01750) | 86.52th | v3 (v2023.03.01) |
| Mar 16, 2023 | 2.08% (0.02078) | 87.30th | v3 (v2023.03.01) |
| Mar 7, 2023 | 2.18% (0.02181) | 87.60th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.11% (0.01108) | 55.18th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.11% (0.01108) | 53.57th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.11% (0.01108) | 51.54th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.11% (0.01108) | 29.61th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.19% (0.01189) | 29.89th | v1 |
| Jan 6, 2022 | 1.19% (0.01189) | 29.26th | v1 |
| Sep 1, 2021 | 1.19% (0.01189) | 67.14th | v1 |
| Apr 14, 2021 | 1.19% (0.01189) | 0.00th | v1 |
Weaknesses (2)
References (11)
- http://www.securityfocus.com/bid/104557 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1041193 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2018-5186 Vendor Advisory
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=1464872%2C1463329%2C1419373%2C1412882%2C1413033%2C1444673%2C1454448%2C1453505%2C1438671 x_refsource_CONFIRMExploitIssue TrackingVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1595038 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2018-5186
- https://security.gentoo.org/glsa/201810-01 vendor-advisoryx_refsource_GENTOOThird Party Advisory
- https://usn.ubuntu.com/3705-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2018-5186
- https://www.mozilla.org/en-US/security/advisories/mfsa2018-16/#CVE-2018-5186
- https://www.mozilla.org/security/advisories/mfsa2018-15/ x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/104557 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1041193 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/security/cve/CVE-2018-5186 | Vendor Advisory | |
| https://bugzilla.mozilla.org/buglist.cgi?bug_id=1464872%2C1463329%2C1419373%2C1412882%2C1413033%2C1444673%2C1454448%2C1453505%2C1438671 | x_refsource_CONFIRMExploitIssue TrackingVendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1595038 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2018-5186 | ||
| https://security.gentoo.org/glsa/201810-01 | vendor-advisoryx_refsource_GENTOOThird Party Advisory | |
| https://usn.ubuntu.com/3705-1/ | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2018-5186 | ||
| https://www.mozilla.org/en-US/security/advisories/mfsa2018-16/#CVE-2018-5186 | ||
| https://www.mozilla.org/security/advisories/mfsa2018-15/ | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mozilla
Published Oct 18, 2018
Updated Aug 5, 2024
Reserved Jan 3, 2018
Link CVE-2018-5186
CISA Vulnrichment
Updated n/a