{"id":"CVE-2026-2815","summary":"Incorrect use of the PUF key for user key generation in EFR32xG27 results in predictable keys","details":"Incorrect use of the PUF key for user key generation in EFR32xG27 results in predictable keys","modified":"2026-07-15T01:49:15.321530177Z","published":"2026-06-25T13:27:45.446Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/2xxx/CVE-2026-2815.json","cna_assigner":"Silabs","cwe_ids":["CWE-339"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/2xxx/CVE-2026-2815.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-2815"},{"type":"REPORT","url":"https://siliconlabs.lightning.force.com/sfc/servlet.shepherd/document/download/069Vm00000kDYsfIAG?operationContext=S1"},{"type":"FIX","url":"https://github.com/SiliconLabsSoftware/sisdk-release"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/siliconlabssoftware/sisdk-release","events":[{"introduced":"0"},{"last_affected":"924e262c3df9a97e483186d2bee0b0661be26166"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"last_affected":"2025.12.1"}],"source":"AFFECTED_FIELD"}}],"versions":["v2025.12.1","v2025.12-build.2447","v2025.12.0","v2025.12-build.2442"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-2815.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:N"}]}