CVE-2020-12418

moderate-risk
Published 2020-07-09

Manipulating individual parts of a URL object could have caused an out-of-bounds read, leaking process memory to malicious JavaScript. This vulnerability affects Firefox ESR < 68.10, Firefox < 78, and Thunderbird < 68.10.0.

Do I need to act?

~
1.2% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.5/10 Medium
NETWORK / LOW complexity

Affected Products (9)

Affected Vendors

Mozilla Canonical Opensuse

References (22)

Mailing List http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00023.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00026.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.html
Issue Tracking https://bugzilla.mozilla.org/show_bug.cgi?id=1641303
Third Party Advisory https://security.gentoo.org/glsa/202007-09
Third Party Advisory https://security.gentoo.org/glsa/202007-10
Third Party Advisory https://usn.ubuntu.com/4421-1/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2020-24/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2020-25/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2020-26/
Mailing List http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00023.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00026.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.html
Issue Tracking https://bugzilla.mozilla.org/show_bug.cgi?id=1641303
Third Party Advisory https://security.gentoo.org/glsa/202007-09
Third Party Advisory https://security.gentoo.org/glsa/202007-10
Third Party Advisory https://usn.ubuntu.com/4421-1/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2020-24/
and 2 more references
43
/ 100
moderate-risk
Severity 24/34 · High
Exploitability 4/34 · Minimal
Exposure 15/34 · Moderate