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CVE-2025-27839

Date: March 6, 2025

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.

Severity Score

Related Resources (5)

https://github.com/tangem/tangem-sdk-android/releases/tag/release-app_5.18-409
https://github.com/tangem/tangem-sdk-android/commit/24588188fdb51ed469cd59d2c595128c1fe63b07
https://nvd.nist.gov/vuln/detail/CVE-2025-27839
https://tangem.com/en/blog/post/app-update/
https://www.mend.io/vulnerability-database/CVE-2025-27839

Severity Score

Weakness Type (CWE)

Comparison Using Wrong Factors

CWE-1025

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): CHANGED
Confidentiality (C): NONE
Integrity (I): LOW
Availability (A): NONE

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