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CVE-2026-3387

MEDIUM CVSS 4.0: 4.8 EPSS 0.02%
Updated Mar 02, 2026
wren-lang
Parameter Value
CVSS 4.8 (MEDIUM)
Type CWE-404 (Improper Resource Shutdown or Release), CWE-476 (NULL Pointer Dereference)
Vendor wren-lang
Public PoC No

A vulnerability has been found in wren-lang wren up to 0.4.0. Affected by this issue is the function getByteCountForArguments of the file src/vm/wren_compiler.c. Such manipulation leads to null pointer dereference.

Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. 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