CVE-2025-66366 - Vulnerability Details - OpenCVE

Incorrect handling of unauthenticated downlink RRC Setup messages can cause the baseband to crash

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

No data.

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://semiconductor.samsung.com/support/quality-support/product-security-updates/

History

Thu, 05 Nov 2026 04:45:00 +0000

Type	Values Removed	Values Added
Title		Unauthenticated Downlink RRC Setup Message Crash in Samsung Exynos Baseband

Thu, 05 Nov 2026 02:45:00 +0000

Type	Values Removed	Values Added
Description		Incorrect handling of unauthenticated downlink RRC Setup messages can cause the baseband to crash
Weaknesses		CWE-129
References		https://semiconductor.samsung.com/support/quality-support/product-security-updates/

Projects

Sign in to view the affected projects.

MITRE

Status: PUBLISHED

Assigner: samsungsemiconductor

Published: 2026-11-05T02:38:04.503Z

Updated: 2026-11-05T02:38:04.503Z

Reserved: 2025-11-28T00:15:21.913Z

Link: CVE-2025-66366

Vulnrichment

No data.

NVD

Status : Received

Published: 2026-11-05T03:17:17.793

Modified: 2026-11-05T03:17:17.793

Link: CVE-2025-66366

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-11-05T04:30:11Z

Weaknesses

CWE-129

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-66366", "assignerOrgId": "a8bfbd5c-5645-475e-a8f4-6c140c17bd29", "state": "PUBLISHED", "assignerShortName": "samsungsemiconductor", "dateReserved": "2025-11-28T00:15:21.913Z", "datePublished": "2026-11-05T02:38:04.503Z", "dateUpdated": "2026-11-05T02:38:04.503Z"}, "containers": {"cna": {"problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-129", "description": "CWE-129", "type": "CWE"}]}], "affected": [{"vendor": "Samsung Semiconductor", "product": "Exynos 1280", "versions": [{"status": "affected", "version": "0", "lessThan": "July 2026", "versionType": "date"}], "defaultStatus": "unaffected"}, {"vendor": "Samsung Semiconductor", "product": "Exynos 1330", "versions": [{"status": "affected", "version": "0", "lessThan": "July 2026", "versionType": "date"}], "defaultStatus": "unaffected"}, {"vendor": "Samsung Semiconductor", "product": "Exynos 1380", "versions": [{"status": "affected", "version": "0", "lessThan": "July 2026", "versionType": "date"}], "defaultStatus": "unaffected"}, {"vendor": "Samsung Semiconductor", "product": "Exynos 1480", "versions": [{"status": "affected", "version": "0", "lessThan": "July 2026", "versionType": "date"}], "defaultStatus": "unaffected"}, {"vendor": "Samsung Semiconductor", "product": "Exynos 2400", "versions": [{"status": "affected", "version": "0", "lessThan": "July 2026", "versionType": "date"}], "defaultStatus": "unaffected"}, {"vendor": "Samsung Semiconductor", "product": "Exynos 1580", "versions": [{"status": "affected", "version": "0", "lessThan": "July 2026", "versionType": "date"}], "defaultStatus": "unaffected"}, {"vendor": "Samsung Semiconductor", "product": "Exynos 2500", "versions": [{"status": "affected", "version": "0", "lessThan": "July 2026", "versionType": "date"}], "defaultStatus": "unaffected"}, {"vendor": "Samsung Semiconductor", "product": "Exynos Modem 5300", "versions": [{"status": "affected", "version": "0", "lessThan": "July 2026", "versionType": "date"}], "defaultStatus": "unaffected"}, {"vendor": "Samsung Semiconductor", "product": "Exynos Modem 5400", "versions": [{"status": "affected", "version": "0", "lessThan": "July 2026", "versionType": "date"}], "defaultStatus": "unaffected"}, {"vendor": "Samsung Semiconductor", "product": "Exynos Modem 5410", "versions": [{"status": "affected", "version": "0", "lessThan": "July 2026", "versionType": "date"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "Incorrect handling of unauthenticated downlink RRC\u202fSetup messages can cause the baseband to crash", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<span style=\"background-color: rgb(255, 255, 255);\">Incorrect handling of unauthenticated downlink RRC\u202fSetup messages can cause the baseband to crash</span>"}]}], "references": [{"url": "https://semiconductor.samsung.com/support/quality-support/product-security-updates/"}], "providerMetadata": {"orgId": "a8bfbd5c-5645-475e-a8f4-6c140c17bd29", "shortName": "samsungsemiconductor", "dateUpdated": "2026-11-05T02:38:04.503Z"}}}}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Exynos 1280", "vendor": "Samsung Semiconductor", "versions": [{"lessThan": "July 2026", "status": "affected", "version": "0", "versionType": "date"}]}, {"defaultStatus": "unaffected", "product": "Exynos 1330", "vendor": "Samsung Semiconductor", "versions": [{"lessThan": "July 2026", "status": "affected", "version": "0", "versionType": "date"}]}, {"defaultStatus": "unaffected", "product": "Exynos 1380", "vendor": "Samsung Semiconductor", "versions": [{"lessThan": "July 2026", "status": "affected", "version": "0", "versionType": "date"}]}, {"defaultStatus": "unaffected", "product": "Exynos 1480", "vendor": "Samsung Semiconductor", "versions": [{"lessThan": "July 2026", "status": "affected", "version": "0", "versionType": "date"}]}, {"defaultStatus": "unaffected", "product": "Exynos 2400", "vendor": "Samsung Semiconductor", "versions": [{"lessThan": "July 2026", "status": "affected", "version": "0", "versionType": "date"}]}, {"defaultStatus": "unaffected", "product": "Exynos 1580", "vendor": "Samsung Semiconductor", "versions": [{"lessThan": "July 2026", "status": "affected", "version": "0", "versionType": "date"}]}, {"defaultStatus": "unaffected", "product": "Exynos 2500", "vendor": "Samsung Semiconductor", "versions": [{"lessThan": "July 2026", "status": "affected", "version": "0", "versionType": "date"}]}, {"defaultStatus": "unaffected", "product": "Exynos Modem 5300", "vendor": "Samsung Semiconductor", "versions": [{"lessThan": "July 2026", "status": "affected", "version": "0", "versionType": "date"}]}, {"defaultStatus": "unaffected", "product": "Exynos Modem 5400", "vendor": "Samsung Semiconductor", "versions": [{"lessThan": "July 2026", "status": "affected", "version": "0", "versionType": "date"}]}, {"defaultStatus": "unaffected", "product": "Exynos Modem 5410", "vendor": "Samsung Semiconductor", "versions": [{"lessThan": "July 2026", "status": "affected", "version": "0", "versionType": "date"}]}], "source": "a8bfbd5c-5645-475e-a8f4-6c140c17bd29"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Incorrect handling of unauthenticated downlink RRC\u202fSetup messages can cause the baseband to crash"}], "id": "CVE-2025-66366", "lastModified": "2026-11-05T03:17:17.793", "metrics": {}, "published": "2026-11-05T03:17:17.793", "references": [{"source": "a8bfbd5c-5645-475e-a8f4-6c140c17bd29", "url": "https://semiconductor.samsung.com/support/quality-support/product-security-updates/"}], "sourceIdentifier": "a8bfbd5c-5645-475e-a8f4-6c140c17bd29", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-129"}], "source": "a8bfbd5c-5645-475e-a8f4-6c140c17bd29", "type": "Secondary"}]}