{"id":"CVE-2025-3873","url":"https://www.cyber-defence.io/tools/cve/CVE-2025-3873","generatedAt":"2026-10-28T09:26:11.546Z","title":"The following APIs for the Silcon Labs SiWx91x prior to vesion 3.4.0 failed to check the size of the output buffer of the caller which could lead to data corruption on the host (Cortex-M4) application. sl_si91x_aes sl_si91x_gcm sl_si91x_ccm sl_si91x_sha","description":"The following APIs for the Silcon Labs SiWx91x prior to vesion 3.4.0 failed to check the size of the output buffer of the caller which could lead to data corruption on the host (Cortex-M4) application.\n\n\nsl_si91x_aes\nsl_si91x_gcm\nsl_si91x_ccm \nsl_si91x_sha","published":"2025-07-25T16:15:34.000Z","lastModified":"2026-06-17T09:20:50.000Z","status":"Deferred","sourceIdentifier":"product-security@silabs.com","cvss":{"version":"4.0","score":6,"severity":"MEDIUM","vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-787"],"affected":[],"epss":{"score":0.00352,"percentile":0.28713,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.35%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://community.silabs.com/068Vm00000SSlOu","source":"product-security@silabs.com"},{"url":"https://docs.silabs.com/wiseconnect/latest/sisdk-wifi-release-notes/","source":"product-security@silabs.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-3873","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."}