CVE-2021-25339

View on CVE.org

Published Mar 4, 2021 CVSS 3.1 · 4.4 Medium EPSS < 1% KEV · Not listed

Description

Improper address validation in HArx in Samsung mobile devices prior to SMR Mar-2021 Release 1 allows an attacker, given a compromised kernel, to corrupt EL2 memory.

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
`Selected Q(10.0), R(11.0)`	affected	< SMR Mar-2021 Release 1

Configuration 1 [-]

AND

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

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-2021-12235	Improper address validation in HArx in Samsung mobile devices prior to SMR Mar-2021 Release 1 allows an attacker, given a compromised kernel, to corrupt EL2 memory.

Metrics

No CVSS v4.0

Attack Vector Physical

Attack Complexity High

Privileges Required High

Scope Unchanged

Confidentiality Impact None

Integrity Impact High

Availability Impact Low

User Interaction Required

No CVSS v3.0

Access Vector Local

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact None

Availability Impact Partial

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.119% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://security.samsungmobile.com
https://security.samsungmobile.com/securityUpdate.smsb

History

No history.

Subscriptions

Google Android

Samsung Exynos 9830

Weaknesses

CWE-20

Sources

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

Status: PUBLISHED
Assigner: Samsung Mobile
Published: Mar 4, 2021, 9:00 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, 3:41 AM

Status: Modified
Published: Mar 4, 2021, 9:15 PM
Modified: Jun 17, 2026, 3:41 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 Mar-2021 Release 1", "status": "affected", "version": "Selected Q(10.0), R(11.0)", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "Improper address validation in HArx in Samsung mobile devices prior to SMR Mar-2021 Release 1 allows an attacker, given a compromised kernel, to corrupt EL2 memory."}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "PHYSICAL", "availabilityImpact": "LOW", "baseScore": 4.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:P/AC:H/PR:H/UI:R/S:U/C:N/I:H/A:L", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-20", "description": "CWE-20 Improper Input Validation", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2021-03-04T21:00:23.000Z", "orgId": "3af57064-a867-422c-b2ad-40307b65c458", "shortName": "Samsung Mobile"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://security.samsungmobile.com/securityUpdate.smsb"}, {"tags": ["x_refsource_MISC"], "url": "https://security.samsungmobile.com"}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 0.0.9"}, "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "mobile.security@samsung.com", "ID": "CVE-2021-25339", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Samsung Mobile Devices", "version": {"version_data": [{"version_affected": "<", "version_name": "Selected Q(10.0), R(11.0)", "version_value": "SMR Mar-2021 Release 1"}]}}]}, "vendor_name": "Samsung Mobile"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "Improper address validation in HArx in Samsung mobile devices prior to SMR Mar-2021 Release 1 allows an attacker, given a compromised kernel, to corrupt EL2 memory."}]}, "generator": {"engine": "Vulnogram 0.0.9"}, "impact": {"cvss": {"attackComplexity": "HIGH", "attackVector": "PHYSICAL", "availabilityImpact": "LOW", "baseScore": 4.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:P/AC:H/PR:H/UI:R/S:U/C:N/I:H/A:L", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-20 Improper Input Validation"}]}]}, "references": {"reference_data": [{"name": "https://security.samsungmobile.com/securityUpdate.smsb", "refsource": "CONFIRM", "url": "https://security.samsungmobile.com/securityUpdate.smsb"}, {"name": "https://security.samsungmobile.com", "refsource": "MISC", "url": "https://security.samsungmobile.com"}]}, "source": {"discovery": "UNKNOWN"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T20:03:05.208Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://security.samsungmobile.com/securityUpdate.smsb"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://security.samsungmobile.com"}]}]}, "cveMetadata": {"assignerOrgId": "3af57064-a867-422c-b2ad-40307b65c458", "assignerShortName": "Samsung Mobile", "cveId": "CVE-2021-25339", "datePublished": "2021-03-04T21:00:23.000Z", "dateReserved": "2021-01-19T00:00:00.000Z", "dateUpdated": "2024-08-03T20:03:05.208Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"affected": [{"affectedData": [{"product": "Samsung Mobile Devices", "vendor": "Samsung Mobile", "versions": [{"lessThan": "SMR Mar-2021 Release 1", "status": "affected", "version": "Selected 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_9830:-:*:*:*:*:*:*:*", "matchCriteriaId": "CC599902-095F-411E-B112-1BA9A643C6C9", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper address validation in HArx in Samsung mobile devices prior to SMR Mar-2021 Release 1 allows an attacker, given a compromised kernel, to corrupt EL2 memory."}, {"lang": "es", "value": "Una comprobaci\u00f3n de direcciones inapropiada en HArx en los dispositivos m\u00f3viles Samsung anteriores a SMR Mar-2021 Release 1, permite que un atacante, dado un kernel comprometido, corrompa la memoria EL2"}], "id": "CVE-2021-25339", "lastModified": "2026-06-17T03:41:54.000", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 2.1, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "PHYSICAL", "availabilityImpact": "LOW", "baseScore": 4.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:P/AC:H/PR:H/UI:R/S:U/C:N/I:H/A:L", "version": "3.1"}, "exploitabilityScore": 0.1, "impactScore": 4.2, "source": "mobile.security@samsung.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "PHYSICAL", "availabilityImpact": "LOW", "baseScore": 5.2, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L", "version": "3.1"}, "exploitabilityScore": 0.9, "impactScore": 4.2, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-03-04T21:15:13.823", "references": [{"source": "mobile.security@samsung.com", "tags": ["Vendor Advisory"], "url": "https://security.samsungmobile.com"}, {"source": "mobile.security@samsung.com", "tags": ["Vendor Advisory"], "url": "https://security.samsungmobile.com/securityUpdate.smsb"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://security.samsungmobile.com"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://security.samsungmobile.com/securityUpdate.smsb"}], "sourceIdentifier": "mobile.security@samsung.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "mobile.security@samsung.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-20"}], "source": "nvd@nist.gov", "type": "Primary"}]}