Samsung Baseband RRCSetup Crash (CVE-2025-66366)
CVE-2025-66366 Published on November 5, 2026

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

NVD

Vulnerability Analysis

CVE-2025-66366 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.

Exploitation:
NONE
Automatable:
YES
Technical Impact:
PARTIAL
Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
NONE
Integrity Impact:
NONE
Availability Impact:
HIGH

Weakness Type

What is an out-of-bounds array index Vulnerability?

The product uses untrusted input when calculating or using an array index, but the product does not validate or incorrectly validates the index to ensure the index references a valid position within the array.

CVE-2025-66366 has been classified to as an out-of-bounds array index vulnerability or weakness.


Products Associated with CVE-2025-66366

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Samsung Exynos

Affected Versions

Samsung Semiconductor Exynos 1280: Samsung Semiconductor Exynos 1330: Samsung Semiconductor Exynos 1380: Samsung Semiconductor Exynos 1480: Samsung Semiconductor Exynos 2400: Samsung Semiconductor Exynos 1580: Samsung Semiconductor Exynos 2500: Samsung Semiconductor Exynos Modem 5300: Samsung Semiconductor Exynos Modem 5400: Samsung Semiconductor Exynos Modem 5410:

Exploit Probability

EPSS
0.14%
Percentile
3.36%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.