CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS
Percentile
42.3%
The Mozilla Foundation Security Advisory describes this flaw as: When receiving rendering data over IPC mStream
could have been destroyed when initialized, which could have led to a use-after-free causing a potentially exploitable crash.