CVE-2023-5172

CRITICAL

Firefox < 118 - Use-After-Free in Ion Engine Hashtable

Title source: llm
STIX 2.1

Description

A hashtable in the Ion Engine could have been mutated while there was a live interior reference, leading to a potential use-after-free and exploitable crash. This vulnerability affects Firefox < 118.

References (3)

Core 3

Scores

CVSS v3 9.8
EPSS 0.0025
EPSS Percentile 47.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact total

Details

CWE
CWE-416
Status published
Products (1)
mozilla/firefox < 118
Published Sep 27, 2023
Tracked Since Feb 18, 2026