CVE-2025-20687

In Bluetooth driver, there is a possible out of bounds read due to an incorrect bounds check. This could lead to local denial of service with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00418045; Issue ID: MSV-3481.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://corp.mediatek.com/product-security-bulletin/July-2025	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:a:mediatek:nbiot_sdk:*:*:*:*:*:*:*:*

OR	cpe:2.3:h:mediatek:mt7902:-:::::::*
	cpe:2.3:h:mediatek:mt7920:-:::::::*
	cpe:2.3:h:mediatek:mt7921:-:::::::*
	cpe:2.3:h:mediatek:mt7922:-:::::::*
	cpe:2.3:h:mediatek:mt7925:-:::::::*
	cpe:2.3:h:mediatek:mt7927:-:::::::*

History

No history.

Information

Published : 2025-07-08 03:15

Updated : 2025-07-14 15:23

NVD link : CVE-2025-20687

Mitre link : CVE-2025-20687

CVE.ORG link : CVE-2025-20687

JSON object : View

Products Affected

mediatek

mt7925
mt7920
mt7922
mt7927
mt7902
nbiot_sdk
mt7921

CWE

CWE-125

Out-of-bounds Read

{"id": "CVE-2025-20687", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "published": "2025-07-08T03:15:28.143", "references": [{"url": "https://corp.mediatek.com/product-security-bulletin/July-2025", "tags": ["Vendor Advisory"], "source": "[email protected]"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "[email protected]", "description": [{"lang": "en", "value": "CWE-125"}]}], "descriptions": [{"lang": "en", "value": "In Bluetooth driver, there is a possible out of bounds read due to an incorrect bounds check. This could lead to local denial of service with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00418045; Issue ID: MSV-3481."}, {"lang": "es", "value": "En el controlador Bluetooth, existe una posible lectura fuera de los l\u00edmites debido a una comprobaci\u00f3n incorrecta de los l\u00edmites. Esto podr\u00eda provocar una denegaci\u00f3n de servicio local, con privilegios de ejecuci\u00f3n de usuario requeridos. No se requiere la interacci\u00f3n del usuario para su explotaci\u00f3n. ID de parche: WCNCR00418045; ID de problema: MSV-3481."}], "lastModified": "2025-07-14T15:23:38.517", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:mediatek:nbiot_sdk:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4926CFD0-C88C-4A5A-8396-A719C52818B1", "versionEndIncluding": "3.6"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:mediatek:mt7902:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "91DEA745-47A8-43F1-A1B2-F53F651A99EF"}, {"criteria": "cpe:2.3:h:mediatek:mt7920:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "140DAC08-96E9-47D3-BC2E-65E999DCFD50"}, {"criteria": "cpe:2.3:h:mediatek:mt7921:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "32AFEA0A-FFE2-4EA9-8B51-7E3E75DE65CC"}, {"criteria": "cpe:2.3:h:mediatek:mt7922:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "EA2A6813-7138-441E-A9E4-FF62FCBD797A"}, {"criteria": "cpe:2.3:h:mediatek:mt7925:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "27CFC9DF-2F4C-469A-8A19-A260B1134CFE"}, {"criteria": "cpe:2.3:h:mediatek:mt7927:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "05525018-AFE0-415C-A71C-A77922C7D637"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "[email protected]"}