4.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
0.001 Low
EPSS
Percentile
23.1%
The Mozilla Foundation Security Advisory describes this flaw as: Excel .xll
add-in files did not have a blocklist entry in Firefox’s executable blocklist which allowed them to be downloaded without any warning of their potential harm.