CVE-2023-6866

HIGH

Mozilla Firefox < 121.0 - Improper Exception Handling

Title source: rule
STIX 2.1

Description

TypedArrays can be fallible and lacked proper exception handling. This could lead to abuse in other APIs which expect TypedArrays to always succeed. This vulnerability affects Firefox < 121.

References (3)

Scores

CVSS v3 8.8
EPSS 0.0112
EPSS Percentile 78.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-755
Status published
Products (1)
mozilla/firefox < 121.0
Published Dec 19, 2023
Tracked Since Feb 18, 2026