{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-14297", "assignerOrgId": "30a5e7fb-040d-440a-8cdf-a4a2068ce72e", "state": "PUBLISHED", "assignerShortName": "YesWeHack", "dateReserved": "2026-07-01T09:51:25.497Z", "datePublished": "2026-09-07T08:07:08.746Z", "dateUpdated": "2026-09-07T08:07:08.746Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "30a5e7fb-040d-440a-8cdf-a4a2068ce72e", "shortName": "YesWeHack", "dateUpdated": "2026-09-07T08:07:08.746Z"}, "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.", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-787", "description": "CWE-787 Out-of-bounds write", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-100", "descriptions": [{"lang": "en", "value": "CAPEC-100 Overflow Buffers"}]}, {"capecId": "CAPEC-540", "descriptions": [{"lang": "en", "value": "CAPEC-540 Overread Buffers"}]}], "affected": [{"vendor": "Nordic Semiconductor ASA", "product": "nRF Connect SDK", "versions": [{"status": "affected", "version": "2.2.0", "lessThanOrEqual": "3.3.0", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "A buffer overflow in the Bluetooth Continuous Glucose\n Monitoring Service (CGMS) Record Access Control Point (RACP) write handler\n allows an authenticated BLE peer to overflow a 20-byte static buffer into\n adjacent BSS memory. The exploitable impact cannot be predetermined - it\n is entirely dependent on the linker-assigned BSS layout of the specific\n firmware build, which may vary.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<span>A buffer overflow in the Bluetooth Continuous Glucose\n Monitoring Service (CGMS) Record Access Control Point (RACP) write handler\n allows an authenticated BLE peer to overflow a 20-byte static buffer into\n adjacent BSS memory. The exploitable impact cannot be predetermined - it\n is entirely dependent on the linker-assigned BSS layout of the specific\n firmware build, which may vary.</span><span></span><br>\n\n<span>\n\n\n\n</span>"}]}], "references": [{"url": "https://docs.nordicsemi.com/r/bundle/struct_sa/page/struct/sa.html"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "ADJACENT", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "HIGH", "baseScore": 8.7, "vectorString": "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"}}], "credits": [{"lang": "en", "value": "https://github.com/V33RU", "type": "reporter"}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.2"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "nRF Connect SDK", "vendor": "Nordic Semiconductor ASA", "versions": [{"lessThanOrEqual": "3.3.0", "status": "affected", "version": "2.2.0", "versionType": "semver"}]}], "source": "30a5e7fb-040d-440a-8cdf-a4a2068ce72e"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A buffer overflow in the Bluetooth Continuous Glucose\n Monitoring Service (CGMS) Record Access Control Point (RACP) write handler\n allows an authenticated BLE peer to overflow a 20-byte static buffer into\n adjacent BSS memory. The exploitable impact cannot be predetermined - it\n is entirely dependent on the linker-assigned BSS layout of the specific\n firmware build, which may vary."}], "id": "CVE-2026-14297", "lastModified": "2026-09-07T09:17:15.430", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "ADJACENT", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.7, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "30a5e7fb-040d-440a-8cdf-a4a2068ce72e", "type": "Secondary"}]}, "published": "2026-09-07T09:17:15.430", "references": [{"source": "30a5e7fb-040d-440a-8cdf-a4a2068ce72e", "url": "https://docs.nordicsemi.com/r/bundle/struct_sa/page/struct/sa.html"}], "sourceIdentifier": "30a5e7fb-040d-440a-8cdf-a4a2068ce72e", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-787"}], "source": "30a5e7fb-040d-440a-8cdf-a4a2068ce72e", "type": "Secondary"}]}

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