{"id":"CVE-2021-25487","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-25487","generatedAt":"2026-10-27T22:31:45.544Z","title":"Samsung Mobile Devices Out-of-Bounds Read Vulnerability","description":"Lack of boundary checking of a buffer in set_skb_priv() of modem interface driver prior to SMR Oct-2021 Release 1 allows OOB read and it results in arbitrary code execution by dereference of invalid function pointer.","published":"2021-10-06T18:15:10.000Z","lastModified":"2026-06-17T03:42:11.000Z","status":"Analyzed","sourceIdentifier":"mobile.security@samsung.com","cvss":{"version":"3.1","score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-125"],"affected":["samsung/android"],"epss":{"score":0.00635,"percentile":0.50154,"date":"2026-10-26","history":[]},"kev":{"listed":true,"dateAdded":"2023-06-29","dueDate":"2023-07-20","knownRansomwareCampaignUse":"Unknown","notes":"Apply updates per vendor instructions or discontinue use of the product if updates are unavailable\nhttps://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=10; https://nvd.nist.gov/vuln/detail/CVE-2021-25487"},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"Known to be exploited in the wild (CISA KEV, CISA remediation deadline 20 July 2023). Treat as an emergency change: patch or isolate now, then hunt for prior compromise."},"changes":[],"references":[{"url":"https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=10","tags":["Vendor Advisory"],"source":"mobile.security@samsung.com"},{"url":"https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=10","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-25487","tags":["US Government Resource"],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-25487","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}