Critical severity · published Mar 25, 2020
CVE-2020-6815
Mozilla developers reported memory safety and script safety bugs present in Firefox 73
9.8
CVSS
1.4%
EPSS
No
On KEV
Description
Mozilla developers reported memory safety and script safety bugs present in Firefox 73. Some of these bugs showed evidence of memory corruption or escalation of privilege and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 74.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.4% · higher than 72% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FI
Firefox · Mozilla
before 74.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-6815
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-6815
Permissions Required
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1181957%2C1557732%2C1557739%2C1611457%2C1612431
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2020-08/
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