{"identifier":"CVE-2021-25394","cve":{"id":"CVE-2021-25394","description":"A use after free vulnerability via race condition in MFC charger driver prior to SMR MAY-2021 Release 1 allows arbitrary write given a radio privilege is compromised.","published":"2021-06-11T15:15:08.957000+00:00","modified":"2026-06-17T03:42:00.260000+00:00","status":"Analyzed","score":6.4,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H","cvss_version":"3.1","affected":[{"criteria":"cpe:2.3:o:samsung:android:8.1:-:*:*:*:*:*:*","versionStartIncluding":"","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":""},{"criteria":"cpe:2.3:o:samsung:android:9.0:smr-apr-2021-r1:*:*:*:*:*:*","versionStartIncluding":"","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":""},{"criteria":"cpe:2.3:o:samsung:android:9.0:smr-feb-2021-r1:*:*:*:*:*:*","versionStartIncluding":"","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":""},{"criteria":"cpe:2.3:o:samsung:android:9.0:smr-jan-2021-r1:*:*:*:*:*:*","versionStartIncluding":"","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":""},{"criteria":"cpe:2.3:o:samsung:android:9.0:smr-mar-2021-r1:*:*:*:*:*:*","versionStartIncluding":"","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":""},{"criteria":"cpe:2.3:o:samsung:android:10.0:smr-apr-2021-r1:*:*:*:*:*:*","versionStartIncluding":"","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":""},{"criteria":"cpe:2.3:o:samsung:android:10.0:smr-feb-2021-r1:*:*:*:*:*:*","versionStartIncluding":"","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":""},{"criteria":"cpe:2.3:o:samsung:android:10.0:smr-jan-2021-r1:*:*:*:*:*:*","versionStartIncluding":"","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":""},{"criteria":"cpe:2.3:o:samsung:android:11.0:smr-apr-2021-r1:*:*:*:*:*:*","versionStartIncluding":"","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":""},{"criteria":"cpe:2.3:o:samsung:android:11.0:smr-feb-2021-r1:*:*:*:*:*:*","versionStartIncluding":"","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":""},{"criteria":"cpe:2.3:o:samsung:android:11.0:smr-jan-2021-r1:*:*:*:*:*:*","versionStartIncluding":"","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":""},{"criteria":"cpe:2.3:o:samsung:android:11.0:smr-jul-2021-r1:*:*:*:*:*:*","versionStartIncluding":"","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":""}],"weaknesses":["CWE-362","CWE-416"],"references":[{"url":"https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=5","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://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-25394","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","tags":["US Government Resource"]}],"kev":{"cveID":"CVE-2021-25394","vendorProject":"Samsung","product":"Mobile Devices","vulnerabilityName":"Samsung Mobile Devices Race Condition Vulnerability","dateAdded":"2023-06-29","shortDescription":"Samsung mobile devices contain a race condition vulnerability within the MFC charger driver that leads to a use-after-free allowing for a write given a radio privilege is compromised.","requiredAction":"Apply updates per vendor instructions or discontinue use of the product if updates are unavailable","dueDate":"2023-07-20","knownRansomwareCampaignUse":"Unknown","forensicTriage":"No","notes":"https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=5; https://nvd.nist.gov/vuln/detail/CVE-2021-25394","cwes":["CWE-416"]},"kev_checked":true,"metrics":{"cvssMetricV31":[{"source":"mobile.security@samsung.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H","baseScore":6.4,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"HIGH","privilegesRequired":"HIGH","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":0.5,"impactScore":5.9},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H","baseScore":6.4,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"HIGH","privilegesRequired":"HIGH","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":0.5,"impactScore":5.9}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:L/AC:M/Au:N/C:P/I:P/A:P","baseScore":4.4,"accessVector":"LOCAL","accessComplexity":"MEDIUM","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL"},"baseSeverity":"MEDIUM","exploitabilityScore":3.4,"impactScore":6.4,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2025-02-04T21:24:33.040669Z","id":"CVE-2021-25394","options":[{"exploitation":"active"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:samsung:android:8.1:-:*:*:*:*:*:*","matchCriteriaId":"3E4F5C8C-AF0C-47F4-A3B0-A6D924FB72BB"},{"vulnerable":true,"criteria":"cpe:2.3:o:samsung:android:9.0:smr-apr-2021-r1:*:*:*:*:*:*","matchCriteriaId":"C690D390-5631-4294-AEB8-9A4C5564FA44"},{"vulnerable":true,"criteria":"cpe:2.3:o:samsung:android:9.0:smr-feb-2021-r1:*:*:*:*:*:*","matchCriteriaId":"3B9A3B41-AAC9-4E23-A265-959A9852B94C"},{"vulnerable":true,"criteria":"cpe:2.3:o:samsung:android:9.0:smr-jan-2021-r1:*:*:*:*:*:*","matchCriteriaId":"B93A5F5F-BF53-44D3-9583-811CC284DF86"},{"vulnerable":true,"criteria":"cpe:2.3:o:samsung:android:9.0:smr-mar-2021-r1:*:*:*:*:*:*","matchCriteriaId":"62A933C7-9739-43DD-851E-0C2009858B77"},{"vulnerable":true,"criteria":"cpe:2.3:o:samsung:android:10.0:smr-apr-2021-r1:*:*:*:*:*:*","matchCriteriaId":"5E21936D-9A60-4987-A6BF-C8F1885FB478"},{"vulnerable":true,"criteria":"cpe:2.3:o:samsung:android:10.0:smr-feb-2021-r1:*:*:*:*:*:*","matchCriteriaId":"18C71F11-7599-4AE1-B455-C7A50D8D5F4D"},{"vulnerable":true,"criteria":"cpe:2.3:o:samsung:android:10.0:smr-jan-2021-r1:*:*:*:*:*:*","matchCriteriaId":"878AAF2D-E54A-4145-A618-81341ED4B0C8"},{"vulnerable":true,"criteria":"cpe:2.3:o:samsung:android:11.0:smr-apr-2021-r1:*:*:*:*:*:*","matchCriteriaId":"8D2D0083-0A85-47F7-A42D-2040A3BEC132"},{"vulnerable":true,"criteria":"cpe:2.3:o:samsung:android:11.0:smr-feb-2021-r1:*:*:*:*:*:*","matchCriteriaId":"25B42CE0-67DE-4611-8D70-DEEC975E32BA"},{"vulnerable":true,"criteria":"cpe:2.3:o:samsung:android:11.0:smr-jan-2021-r1:*:*:*:*:*:*","matchCriteriaId":"AC082E25-1B7D-473D-A066-1463E6321CD5"},{"vulnerable":true,"criteria":"cpe:2.3:o:samsung:android:11.0:smr-jul-2021-r1:*:*:*:*:*:*","matchCriteriaId":"2B088DE9-31F1-4737-8BC8-CC406F208ACB"}]}]}],"source":"nvd","retrieved_at":"2026-10-29T22:30:22.481777+00:00","exploited":true,"kev_stale":false,"products":["samsung / android"],"priority":{"label":"Known exploitation: prioritize review","reasons":["CISA KEV lists real-world exploitation."]},"epss":{"probability":0.00401,"percentile":0.34324,"date":"2026-10-29","stale":false},"version_assessment":null},"news":[],"campaigns":[],"domains":[{"domain":"security.samsungmobile.com","source_url":"https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=5","investigate_url":"https://investigate.aeglixmind.com/#security.samsungmobile.com"},{"domain":"www.cisa.gov","source_url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-25394","investigate_url":"https://investigate.aeglixmind.com/#www.cisa.gov"}],"arsenal_url":"https://arsenal.aeglixmind.com/?cve=CVE-2021-25394","catalog_url":"https://cves.aeglixmind.com/cve/CVE-2021-25394","research_url":"https://investigate.aeglixmind.com/research/cve/CVE-2021-25394","coverage":{"news_candidates_checked":0,"campaign_candidates_checked":0,"bounded":false,"notice":"Exact CVE mentions in stored public excerpts and reviewed campaign content only. A mention is not proof of exploitation, attribution or tool suitability. Missing matches do not establish absence."}}