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CVE-2025-35003: Apache NuttX RTOS: NuttX Bluetooth Stack HCI and UART DoS/RCE Vulnerabilities.

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-05-26 · updated 2026-06-17
• Weakness: CWE-119

Description

Improper Restriction of Operations within the Bounds of a Memory Buffer and Stack-based Buffer Overflow vulnerabilities were discovered in Apache NuttX RTOS Bluetooth Stack (HCI and UART components) that may result in system crash, denial of service, or arbitrary code execution, after receiving maliciously crafted packets. NuttX's Bluetooth HCI/UART stack users are advised to upgrade to version 12.9.0, which fixes the identified implementation issues. This issue affects Apache NuttX: from 7.25 before 12.9.0.

Affected products

• Apache Software Foundation Apache NuttX RTOS: from 7.25 before 12.9.0 — fixed in 12.9.0

How to fix

Upgrade to a fixed version: Apache Software Foundation Apache NuttX RTOS 12.9.0. Check the vendor advisory for mitigations.

References

• https://github.com/apache/nuttx/pull/16179
• https://lists.apache.org/thread/k4xzz3jhkx48zxw9vwmqrmm4hmg78vsj
• http://www.openwall.com/lists/oss-security/2025/05/26/1

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