{"cve":"CVE-2025-27839","nvd":{"published":"2025-03-08T00:15:38.340","modified":"2026-06-17T09:04:19.233","status":"Deferred","description":"operations/attestation/AttestationTask.kt in the Tangem SDK before 5.18.3 for Android has a logic flow in offline wallet attestation (genuineness check) that causes verification results to be disregarded during the first scan of a card. Exploitation may not have been possible.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N","score":3.2},"cwes":["CWE-1025"],"references":["https://github.com/tangem/tangem-sdk-android/commit/24588188fdb51ed469cd59d2c595128c1fe63b07","https://github.com/tangem/tangem-sdk-android/releases/tag/release-app_5.18-409","https://tangem.com/en/blog/post/app-update/"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:00:17.429720821+00:00"},"epss":{"cve":"CVE-2025-27839","score":0.00361,"percentile":0.29886,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}