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.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Samsung Semiconductor

Exynos 1280

unaffected

Version	Status	Constraints
`0`	affected	< July 2026

Samsung Semiconductor

Exynos 1330

unaffected

Version	Status	Constraints
`0`	affected	< July 2026

Samsung Semiconductor

Exynos 1380

unaffected

Version	Status	Constraints
`0`	affected	< July 2026

Samsung Semiconductor

Exynos 1480

unaffected

Version	Status	Constraints
`0`	affected	< July 2026

Samsung Semiconductor

Exynos 2400

unaffected

Version	Status	Constraints
`0`	affected	< July 2026

Samsung Semiconductor

Exynos 1580

unaffected

Version	Status	Constraints
`0`	affected	< July 2026

Samsung Semiconductor

Exynos 2500

unaffected

Version	Status	Constraints
`0`	affected	< July 2026

Samsung Semiconductor

Exynos Modem 5300

unaffected

Version	Status	Constraints
`0`	affected	< July 2026

Samsung Semiconductor

Exynos Modem 5400

unaffected

Version	Status	Constraints
`0`	affected	< July 2026

Samsung Semiconductor

Exynos Modem 5410

unaffected

Version	Status	Constraints
`0`	affected	< July 2026

No data.

No data.

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Project Subscriptions

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 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

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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

No data.

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-129

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