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CVE-2026-3389

MEDIUM CVSS 4.0: 4.8 EPSS 0.03%
Updated Mar 02, 2026
Parameter Value
CVSS 4.8 (MEDIUM)
Type CWE-404 (Improper Resource Shutdown or Release), CWE-476 (NULL Pointer Dereference)
Public PoC No

A vulnerability was determined in Squirrel up to 3.2. This vulnerability affects the function sqstd_rex_newnode in the library sqstdlib/sqstdrex.cpp. Executing a manipulation can lead to null pointer dereference.

The attack can only be executed locally. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet.

Attack Parameters

Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
Low
Partial disruption

CVSS Vector v4.0