Samsung Semiconductor Exynos Modem 5410 Baseband input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.5$0-$5k1.76+

Summaryinfo

A vulnerability classified as critical has been found in Samsung Semiconductor Exynos 850, Exynos 1080, Exynos 2100, Exynos 1280, Exynos 2200, Exynos 1330, Exynos 1380, Exynos 1480, Exynos 2400, Exynos 1580, Exynos 2500, Exynos 1680, Exynos 9110, Exynos W920, Exynos W930, Exynos W1000, Exynos Modem 5123, Exynos Modem 5300, Exynos Modem 5400 and Exynos Modem 5410. This impacts an unknown function of the component Baseband. The manipulation leads to input validation. This vulnerability is uniquely identified as CVE-2025-66364. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in Samsung Semiconductor Exynos 850, Exynos 1080, Exynos 2100, Exynos 1280, Exynos 2200, Exynos 1330, Exynos 1380, Exynos 1480, Exynos 2400, Exynos 1580, Exynos 2500, Exynos 1680, Exynos 9110, Exynos W920, Exynos W930, Exynos W1000, Exynos Modem 5123, Exynos Modem 5300, Exynos Modem 5400 and Exynos Modem 5410. It has been rated as critical. This issue affects some unknown processing of the component Baseband. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is availability. The summary by CVE is:

Continuously sending control‑plane messages causes the baseband to crashes.

The advisory is shared at semiconductor.samsung.com. The identification of this vulnerability is CVE-2025-66364 since 11/28/2025. The exploitation is known to be easy. The attack may be initiated remotely. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 11/05/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.5

VulDB Base Score: 6.5
VulDB Temp Score: 6.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

11/28/2025 CVE reserved
11/05/2026 +342 days Advisory disclosed
11/05/2026 +0 days VulDB entry created
11/05/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: semiconductor.samsung.com
Status: Not defined

CNA: samsungsemiconductor
CVE: CVE-2025-66364 (🔒)

GCVE (CVE): GCVE-0-2025-66364
GCVE (VulDB): GCVE-100-431297

Entryinfo

Created: 11/05/2026 02:54
Changes: 11/05/2026 02:54 (51)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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