CVE-2026-124952

HIGH CVSS 3.1: 8.8 EPSS 0.28%
Updated Nov 10, 2026
Firefox
Parameter Value
CVSS 8.8 (HIGH)
Type CWE-416 (Use After Free)
Vendor Firefox
Public PoC No

Use-after-free in the Audio/Video component. This vulnerability was fixed in Firefox ESR 115.45.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
Required
User action required

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Weakness Type (CWE)