CVE-2025-47869 Apache NuttX RTOS: examples/xmlrpc: Fix calls buffers size.
A buffer overflow in the NuttX RTOS XMLRPC example allows attackers to cause memory corruption, potentially leading to code execution or denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-47869?
CVE-2025-47869 is a critical memory corruption vulnerability in Apache NuttX RTOS, published on 16 Jun 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-119
Which versions are affected by CVE-2025-47869?
It affects 1 product.
Products include Apache Nuttx.
How do I fix CVE-2025-47869?
No fix has been published for CVE-2025-47869 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-47869 being exploited?
There is no known exploitation of CVE-2025-47869 in the wild and no public exploit code.
Other vulnerabilities in Apache NuttX RTOS
- CVE-2025-47868 Apache NuttX RTOS: tools/bdf-converter.: tools/bdf-converter: Fix loop termination condition.
- CVE-2025-35003 Apache NuttX RTOS: NuttX Bluetooth Stack HCI and UART DoS/RCE Vulnerabilities.
- CVE-2021-26461 malloc, realloc and memalign implementations are vulnerable to integer wrap-arounds
- CVE-2020-17529 Apache NuttX (incubating) Out of Bound Write from invalid fragmentation offset value specified in the IP header
- CVE-2020-1939 Null dereference in Apache NuttX (incubating)
Sources
Also known as GHSA-pqw8-wfp5-mgqq.