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CVE-2025-47869

Apache Nuttx buffer overflow

9.8 CRITICALEPSS 0.74%
  1. Published16 Jun 2025

Description

Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability was discovered in Apache NuttX RTOS apps/exapmles/xmlrpc application. In this example application device stats structure that stored remotely provided parameters had hardcoded buffer size which could lead to buffer overflow. Structure members buffers were updated to valid size of CONFIG_XMLRPC_STRINGSIZE+1. This issue affects Apache NuttX RTOS users that may have used or base their code on example application as presented in releases from 6.22 before 12.9.0. Users of XMLRPC in Apache NuttX RTOS are advised to review their code for this pattern and update buffer sizes as presented in the version of the example in release 12.9.0.

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≥ 6.22 < 12.9.0

Remediation

Fixed in
Apache Nuttx≥ 12.9.0

References

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Frequently asked

Is CVE-2025-47869 being actively exploited?

CVE-2025-47869 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.74%.

How severe is CVE-2025-47869?

CVE-2025-47869 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-2025-47869?

Affected products include Apache Nuttx.

How do I fix CVE-2025-47869?

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-2025-47869 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.