High · CVSS 8.7CVE-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.CVE-2026-14297

Answer in brief

CVE-2026-14297 records a High severity (CVSS 8.7) vulnerability in 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.. The current sources do not mark it as known exploited. The current feed maps Nordic Semiconductor ASA/nRF Connect SDK (generic), Nordic Semiconductor ASA/nRF Connect SDK (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 7, 2026Updated Sep 9, 2026Source checked Oct 22, 2026First seen by HOL Sep 7, 2026Material review Sep 9, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 8.7
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Not reported

Why this deserves its current priority

CVSS is 8.7. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Nordic Semiconductor ASA/nRF Connect SDK (generic), Nordic Semiconductor ASA/nRF Connect SDK (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Nordic Semiconductor ASA/nRF Connect SDKgeneric	>=2.2.0 <=3.3.0	Not reported
Nordic Semiconductor ASA/nRF Connect SDKgeneric	2.2.0	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Nordic Semiconductor ASA/nRF Connect SDK, Nordic Semiconductor ASA/nRF Connect SDK.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Sep 7, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 9, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 7, 2026

Sources and claim methodology

Source referencedocs.nordicsemi.com

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.