CVE-2026-14297: CWE-787 Out-of-bounds write in Nordic Semiconductor ASA nRF Connect SDK
Description
CVE-2026-14297 is a high-severity buffer overflow vulnerability in the Bluetooth Continuous Glucose Monitoring Service (CGMS) Record Access Control Point (RACP) write handler of Nordic Semiconductor ASA's nRF Connect SDK. An authenticated Bluetooth Low Energy (BLE) peer can overflow a 20-byte static buffer, potentially overwriting adjacent memory. The impact depends on the specific firmware build's memory layout and cannot be predetermined.
CVSS v4.0
Score 8.7high
Affected software
Nordic Semiconductor ASA
nRF Connect SDK
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 CGMS RACP write handler within Nordic Semiconductor ASA's nRF Connect SDK. An authenticated BLE peer can write beyond a fixed 20-byte buffer, causing memory corruption in adjacent BSS memory. The exploitability and impact vary based on the linker-assigned BSS layout of the firmware build, making the exact consequences unpredictable. The CVSS 4.0 score is 8.7, indicating high severity with attack vector requiring adjacent access and no privileges or user interaction needed.
Potential Impact
Successful exploitation can lead to memory corruption, which may cause unpredictable behavior including crashes or potentially arbitrary code execution depending on the firmware's memory layout. The impact is highly dependent on the specific firmware build and cannot be generalized.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided in the available data. Users should monitor Nordic Semiconductor ASA advisories for updates and apply patches once available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- YesWeHack
- Date Reserved
- 2026-07-01T09:51:25.497Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a9e77e3acd9273b493fb3bb
Added to database: 09/07/2026, 08:37:55 UTC
Last enriched: 09/15/2026, 01:03:34 UTC
Last updated: 10/22/2026, 13:15:20 UTC
Views: 117
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