CVE-2026-14297— The Continuous Glucose Monitoring Service's Record Access Control Point (RACP) write handler `memcpy`s the entire attacker-supplied ATT write value into a fixed 20-byte BSS buffer.
Quick assessment
Affected
Nordic Semiconductor ASA nRF Connect SDK
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
蓝牙连续葡萄糖监测服务（CGMS）记录访问控制点（RACP）的写入处理器中存在缓冲区溢出漏洞。经过认证的蓝牙低功耗（BLE）对等方可以将 20 字节的静态缓冲区溢出到相邻的 BSS 内存中。该漏洞的可利用影响无法预先确定——它完全取决于特定固件构建中由链接器分配的 BSS 内存布局，而这可能各不相同。
Possible ATT&CK Techniques 1 AI
T1531 · Account Access Removal
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I. Basic Information for CVE-2026-14297
Vulnerability Information
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Vulnerability Title
The Continuous Glucose Monitoring Service's Record Access Control Point (RACP) write handler `memcpy`s the entire attacker-supplied ATT write value into a fixed 20-byte BSS buffer.
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存写
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Nordic Semiconductor ASA | nRF Connect SDK | 2.2.0 ~ 3.3.0 | - |
|
II. Public POCs for CVE-2026-14297
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2026-14297 (1)
Same Patch Batch · Nordic Semiconductor ASA · 2026-09-07 · 3 CVEs total
| CVE-2026-14296 | 7.5 HIGH | nRF54H20: MCUBoot can be tricked to executing unauthenticated code |
| CVE-2026-18796 | 6.8 MEDIUM | QSPI flash encryption side-channel leakage |
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V. Comments for CVE-2026-14297
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