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.
References (3)
Core 3
Core References
Issue Tracking, Third Party Advisory patch
https://github.com/apache/nuttx/pull/16000
Vendor Advisory vendor-advisory
https://lists.apache.org/thread/p4o2lcqgspx3ws1n2p4wmoqbqow1w1pw
Mailing List, Vendor Advisory
http://www.openwall.com/lists/oss-security/2025/06/14/1
Scores
CVSS v3
9.8
EPSS
0.0047
EPSS Percentile
64.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
total
Details
CWE
CWE-122
CWE-787
Status
published
Products (1)
apache/nuttx
6.9 - 12.9.0
Published
Jun 16, 2025
Tracked Since
Feb 18, 2026