CVE-2026-55331

HIGH CVSS 3.1: 8.8
Updated Sep 16, 2026
In
Parameter Value
CVSS 8.8 (HIGH)
Type CWE-120 (Buffer Copy without Checking Size)
Vendor In
Public PoC No

In IP Multimedia Subsystem, there is a possible out-of-bounds write due to an incorrect bounds check. This could lead to remote code execution with no additional execution privileges needed. User interaction is not needed for exploitation.

Attack Parameters

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

Impact Assessment

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

CVSS Vector v3.1