CVE-2021-25396

View on CVE.org

Published Jun 11, 2021 CVSS 3.1 · 6.7 Medium EPSS < 1% KEV · Not listed

Description

An improper input validation vulnerability in NPU firmware prior to SMR MAY-2021 Release 1 allows arbitrary memory write and code execution.

Affected Products

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 Mobile

Samsung Mobile Devices

affected

Version	Status	Constraints
`Q(10.0), R(11.0)`	affected	< SMR MAY-2021 Release 1

Configuration 1 [-]

AND

OR	cpe:2.3:o:google:android:10.0:::::::*
	cpe:2.3:o:google:android:11.0:::::::*

OR	cpe:2.3:h:samsung:exynos_2100:-:::::::*
	cpe:2.3:h:samsung:exynos_980:-:::::::*
	cpe:2.3:h:samsung:exynos_9820:-:::::::*
	cpe:2.3:h:samsung:exynos_9830:-:::::::*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2021-12292	An improper input validation vulnerability in NPU firmware prior to SMR MAY-2021 Release 1 allows arbitrary memory write and code execution.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Local

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.128% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=5

History

No history.

Subscriptions

Google Android

Samsung Exynos 2100 Exynos 980 Exynos 9820 Exynos 9830

Weaknesses

CWE-787

Sources

CVE record Updated: Aug 3, 2024, 8:03 PM

Status: PUBLISHED
Assigner: Samsung Mobile
Published: Jun 11, 2021, 2:45 PM
Updated: Aug 3, 2024, 8:03 PM
Reserved: Jan 19, 2021, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 3:42 AM

Status: Modified
Published: Jun 11, 2021, 3:15 PM
Modified: Jun 17, 2026, 3:42 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

{"containers": {"cna": {"affected": [{"product": "Samsung Mobile Devices", "vendor": "Samsung Mobile", "versions": [{"lessThan": "SMR MAY-2021 Release 1", "status": "affected", "version": "Q(10.0), R(11.0)", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "An improper input validation vulnerability in NPU firmware prior to SMR MAY-2021 Release 1 allows arbitrary memory write and code execution."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 6.7, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-787", "description": "CWE-787: Out-of-bounds Write", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2021-06-11T14:45:22.000Z", "orgId": "3af57064-a867-422c-b2ad-40307b65c458", "shortName": "Samsung Mobile"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=5"}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 0.0.9"}, "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "mobile.security@samsung.com", "ID": "CVE-2021-25396", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Samsung Mobile Devices", "version": {"version_data": [{"version_affected": "<", "version_name": "Q(10.0), R(11.0)", "version_value": "SMR MAY-2021 Release 1"}]}}]}, "vendor_name": "Samsung Mobile"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "An improper input validation vulnerability in NPU firmware prior to SMR MAY-2021 Release 1 allows arbitrary memory write and code execution."}]}, "generator": {"engine": "Vulnogram 0.0.9"}, "impact": {"cvss": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 6.7, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-787: Out-of-bounds Write"}]}]}, "references": {"reference_data": [{"name": "https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=5", "refsource": "MISC", "url": "https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=5"}]}, "source": {"discovery": "UNKNOWN"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T20:03:05.578Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=5"}]}]}, "cveMetadata": {"assignerOrgId": "3af57064-a867-422c-b2ad-40307b65c458", "assignerShortName": "Samsung Mobile", "cveId": "CVE-2021-25396", "datePublished": "2021-06-11T14:45:22.000Z", "dateReserved": "2021-01-19T00:00:00.000Z", "dateUpdated": "2024-08-03T20:03:05.578Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"affected": [{"affectedData": [{"product": "Samsung Mobile Devices", "vendor": "Samsung Mobile", "versions": [{"lessThan": "SMR MAY-2021 Release 1", "status": "affected", "version": "Q(10.0), R(11.0)", "versionType": "custom"}]}], "source": "mobile.security@samsung.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:google:android:10.0:*:*:*:*:*:*:*", "matchCriteriaId": "D558D965-FA70-4822-A770-419E73BA9ED3", "vulnerable": true}, {"criteria": "cpe:2.3:o:google:android:11.0:*:*:*:*:*:*:*", "matchCriteriaId": "109DD7FD-3A48-4C3D-8E1A-4433B98E1E64", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:samsung:exynos_2100:-:*:*:*:*:*:*:*", "matchCriteriaId": "9385885D-654A-496E-8029-7C6D9B077193", "vulnerable": false}, {"criteria": "cpe:2.3:h:samsung:exynos_980:-:*:*:*:*:*:*:*", "matchCriteriaId": "0D8701B6-6989-44D1-873A-A1823BFD7CCC", "vulnerable": false}, {"criteria": "cpe:2.3:h:samsung:exynos_9820:-:*:*:*:*:*:*:*", "matchCriteriaId": "1B8C35DE-1C58-4C6E-BB15-0E3C2FECB8DA", "vulnerable": false}, {"criteria": "cpe:2.3:h:samsung:exynos_9830:-:*:*:*:*:*:*:*", "matchCriteriaId": "CC599902-095F-411E-B112-1BA9A643C6C9", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An improper input validation vulnerability in NPU firmware prior to SMR MAY-2021 Release 1 allows arbitrary memory write and code execution."}, {"lang": "es", "value": "Una vulnerabilidad de comprobaci\u00f3n inapropiada de la entrada en NPU versiones de firmware anteriores a SMR MAY-2021 Release 1, permite una escritura de memoria arbitraria y una ejecuci\u00f3n de c\u00f3digo"}], "id": "CVE-2021-25396", "lastModified": "2026-06-17T03:42:00.510", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 4.6, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 6.7, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 0.8, "impactScore": 5.9, "source": "mobile.security@samsung.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 6.7, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 0.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-06-11T15:15:09.110", "references": [{"source": "mobile.security@samsung.com", "tags": ["Vendor Advisory"], "url": "https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=5"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=5"}], "sourceIdentifier": "mobile.security@samsung.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-787"}], "source": "mobile.security@samsung.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-787"}], "source": "nvd@nist.gov", "type": "Primary"}]}