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CVE-2025-27839

Quick assessment

Affected
Tangem SDK
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Tangem是Tangem开源的一个适用于 Android 和 JVM 平台的原生 Kotlin 库。 Tangem 5.18.3之前版本存在安全漏洞，该漏洞源于离线钱包认证存在逻辑缺陷，可能导致验证结果被忽略。

CVSS 3.2 · Low EPSS 0.36% · P28

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts
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I. Basic Information for CVE-2025-27839

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用错误要素进行比较
Source: CVE Program / CVE List V5
Vulnerability Title
Tangem 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tangem是Tangem开源的一个适用于 Android 和 JVM 平台的原生 Kotlin 库。 Tangem 5.18.3之前版本存在安全漏洞，该漏洞源于离线钱包认证存在逻辑缺陷，可能导致验证结果被忽略。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Tangem SDK 0 ~ 5.18.3 -

II. Public POCs for CVE-2025-27839

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III. Intelligence Information for CVE-2025-27839

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Patches & Fixes for CVE-2025-27839 (1)

Security Blog Posts for CVE-2025-27839 (1)

Vendor Pages for CVE-2025-27839 (1)

IV. Related Vulnerabilities

Same product: SDK
Same weakness: CWE-1025

V. Comments for CVE-2025-27839

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