CVE-2020-6815
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.36%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.36% probability · 70th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- mozilla/firefox
- Source
- security@mozilla.org
References
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=1181957%2C1557732%2C1557739%2C1611457%2C1612431Permissions Required, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-08/Vendor Advisory
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=1181957%2C1557732%2C1557739%2C1611457%2C1612431Permissions Required, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-08/Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.