CVE-2018-18501
9.8
CRITICAL · CVSS 3.0 · EPSS 3.4% (pctl 88)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
Description
Mozilla developers and community members reported memory safety bugs present in Firefox 64 and Firefox ESR 60.4. 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 Thunderbird < 60.5, Firefox ESR < 60.5, and Firefox < 65.
Scoring
| CVSS | 9.8 (CRITICAL, v3.0) |
|---|---|
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 3.37% — more likely to be exploited than 88% of all CVEs |
| Weakness | CWE-119 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2019-02-05 |
| Last modified | 2026-06-17 |
Affected (10)
| Vendor | Product |
|---|---|
| canonical | ubuntu linux |
| debian | debian linux |
| mozilla | firefox |
| mozilla | firefox esr |
| mozilla | thunderbird |
| redhat | enterprise linux desktop |
| redhat | enterprise linux server |
| redhat | enterprise linux server aus |
| redhat | enterprise linux server eus |
| redhat | enterprise linux workstation |
References
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00021.html
- http://www.securityfocus.com/bid/106781
- https://access.redhat.com/errata/RHSA-2019:0218
- https://access.redhat.com/errata/RHSA-2019:0219
- https://access.redhat.com/errata/RHSA-2019:0269
- https://access.redhat.com/errata/RHSA-2019:0270
- https://lists.debian.org/debian-lts-announce/2019/01/msg00025.html
- https://lists.debian.org/debian-lts-announce/2019/02/msg00024.html
- https://security.gentoo.org/glsa/201903-04
- https://security.gentoo.org/glsa/201904-07
- https://usn.ubuntu.com/3874-1/
- https://usn.ubuntu.com/3897-1/
- https://www.debian.org/security/2019/dsa-4376
- https://www.debian.org/security/2019/dsa-4392
- https://www.mozilla.org/security/advisories/mfsa2019-01/
- https://www.mozilla.org/security/advisories/mfsa2019-02/
- https://www.mozilla.org/security/advisories/mfsa2019-03/
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00021.html
- http://www.securityfocus.com/bid/106781
- https://access.redhat.com/errata/RHSA-2019:0218
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