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CVE-2025-47868

Apache Nuttx buffer overflow

9.8 CRITICALEPSS 0.74%
  1. Published16 Jun 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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Apache Nuttx≥ 6.9 < 12.9.0

Remediation

Fixed in
Apache Nuttx≥ 12.9.0

References

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Frequently asked

Is CVE-2025-47868 being actively exploited?

CVE-2025-47868 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.74%.

How severe is CVE-2025-47868?

CVE-2025-47868 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.74% probability of exploitation.

Which products are affected by CVE-2025-47868?

Affected products include Apache Nuttx.

How do I fix CVE-2025-47868?

Upgrade affected software to a fixed version, for example Apache Nuttx 12.9.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-47868 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.