CVE-2025-47868

Apache NuttX RTOS: tools/bdf-converter.: tools/bdf-converter: Fix loop termination condition.

State: Published
Severity: 9.8 Critical
Published: Jun 16, 2025
Updated: Jun 16, 2025
Reserved: May 12, 2025

Description

Out-of-bounds Write resulting in possible Heap-based Buffer Overflow vulnerability was discovered in tools/bdf-converter font conversion utility that is part of Apache NuttX RTOS repository. This standalone program is optional and neither part of NuttX RTOS nor Applications runtime, but active bdf-converter users may be affected when this tool is exposed to external provided user data data (i.e. publicly available automation).

This issue affects Apache NuttX: from 6.9 before 12.9.0.

Users are recommended to upgrade to version 12.9.0, which fixes the issue.

Scores

CVSS	Score	Vector	Source
3.1	9.8 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	CISA-ADP

Weaknesses

CWE-787 Out-of-bounds Write
CWE-122 Heap-based Buffer Overflow

Affected Products

Product	Versions
Apache NuttX RTOS: tools/bdf-converter.Apache Software Foundation	6.9 to before 12.9.0Affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.