CVE-2026-14297: CWE-787 Out-of-bounds write in Nordic Semiconductor ASA nRF Connect SDK
A buffer overflow in the Bluetooth Continuous Glucose Monitoring Service (CGMS) Record Access Control Point (RACP) write handler allows an authenticated BLE peer to overflow a 20-byte static buffer into adjacent BSS memory. The exploitable impact cannot be predetermined - it is entirely dependent on the linker-assigned BSS layout of the specific firmware build, which may vary.
AI Analysis
Technical Summary
This vulnerability involves a buffer overflow (CWE-787) in the Bluetooth CGMS RACP write handler of nRF Connect SDK version 2.2.0. An authenticated Bluetooth Low Energy peer can write beyond a fixed 20-byte buffer, corrupting adjacent BSS memory. The exploitability and impact vary depending on the linker-assigned BSS layout of the firmware build. The CVSS 4.0 base score is 8.7, indicating high severity. No patch or official remediation level has been published as of the data provided.
Potential Impact
An authenticated BLE peer can cause a buffer overflow that overwrites adjacent memory in the BSS segment, potentially leading to memory corruption. The exact impact is unpredictable and depends on the firmware's memory layout, which may result in undefined behavior or compromise of the device's operation or security.
Mitigation Recommendations
No official patch or remediation guidance is currently available. Users should monitor Nordic Semiconductor ASA's advisories for updates and consider restricting authenticated BLE peer access to trusted devices until a fix is released.
CVE-2026-14297: CWE-787 Out-of-bounds write in Nordic Semiconductor ASA nRF Connect SDK
Description
A buffer overflow in the Bluetooth Continuous Glucose Monitoring Service (CGMS) Record Access Control Point (RACP) write handler allows an authenticated BLE peer to overflow a 20-byte static buffer into adjacent BSS memory. The exploitable impact cannot be predetermined - it is entirely dependent on the linker-assigned BSS layout of the specific firmware build, which may vary.
CVSS v4.0
Score 8.7high
Affected software
pkg:github/nordicsemiconductor/nrfconnect-sdkRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a buffer overflow (CWE-787) in the Bluetooth CGMS RACP write handler of nRF Connect SDK version 2.2.0. An authenticated Bluetooth Low Energy peer can write beyond a fixed 20-byte buffer, corrupting adjacent BSS memory. The exploitability and impact vary depending on the linker-assigned BSS layout of the firmware build. The CVSS 4.0 base score is 8.7, indicating high severity. No patch or official remediation level has been published as of the data provided.
Potential Impact
An authenticated BLE peer can cause a buffer overflow that overwrites adjacent memory in the BSS segment, potentially leading to memory corruption. The exact impact is unpredictable and depends on the firmware's memory layout, which may result in undefined behavior or compromise of the device's operation or security.
Mitigation Recommendations
No official patch or remediation guidance is currently available. Users should monitor Nordic Semiconductor ASA's advisories for updates and consider restricting authenticated BLE peer access to trusted devices until a fix is released.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- YesWeHack
- Date Reserved
- 2026-07-01T09:51:25.497Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a9e77e3acd9273b493fb3bb
Added to database: 09/07/2026, 08:37:55 UTC
Last enriched: 09/07/2026, 08:52:09 UTC
Last updated: 09/08/2026, 03:14:49 UTC
Views: 22
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