CVE-2026-38976

Published Jul 6, 2026 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Description
mrubyc through 3.4.1 was found to contain a NULL pointer dereference in src/vm.c in op_super() / OP_SUPER due to a missing runtime guard for top-level super.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Title Null Pointer Dereference in mrubyc Virtual Machine
Type Values Removed Values Added
Title Null Pointer Dereference in mrubyc Virtual Machine
Type Values Removed Values Added
Title Null Pointer Dereference in mrubyc VM Leading to Crash
Type Values Removed Values Added
Title Null Pointer Dereference in mrubyc VM Leading to Crash
Type Values Removed Values Added
Title Null Pointer Dereference in mrubyc VM OP_SUPER Instruction
Type Values Removed Values Added
Title Null Pointer Dereference in mrubyc VM OP_SUPER Instruction
Type Values Removed Values Added
Title mrubyc OP_SUPER Null Pointer Dereference Vulnerability
Type Values Removed Values Added
Title mrubyc OP_SUPER Null Pointer Dereference Vulnerability
Type Values Removed Values Added
Title Null Pointer Dereference in mrubyc Virtual Machine
Type Values Removed Values Added
Title Null Pointer Dereference in mrubyc Virtual Machine
Type Values Removed Values Added
Title NULL Pointer Dereference in mrubyc Virtual Machine Leading to Crash
Type Values Removed Values Added
Title NULL Pointer Dereference in mrubyc Virtual Machine Leading to Crash
Type Values Removed Values Added
Title NULL Pointer Dereference in mrubyc VM op_super
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title NULL Pointer Dereference in mrubyc VM op_super
Weaknesses CWE-476
Type Values Removed Values Added
Description mrubyc through 3.4.1 was found to contain a NULL pointer dereference in src/vm.c in op_super() / OP_SUPER due to a missing runtime guard for top-level super.
References

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Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Jul 7, 2026, 4:14 PM
Reserved
Apr 6, 2026, 12:00 AM
Status
Deferred
Published
Jul 6, 2026, 10:16 PM
Modified
Jul 7, 2026, 5:16 PM