CVE-2025-27839 json
operations/attestation/AttestationTask.kt in the Tangem SDK before 5.18.3 for Android has a logic flow in offline wallet attestation (genui…
published last yr. modified 4mo ago also EUVD-2025-7815
- cvss
- 3.2
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 30%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- Tangem SDK 5.18.3
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- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- last yr.
Exploit prediction
0.36% chance of exploitation in the next 30 days, higher than 30% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 3.2 | CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N |
Affected products
- Tangem SDK
Classification
- Weakness
-
- CWE-1025 Comparison Using Wrong Factors
References
Sources
- CVE List CVE-2025-27839
- NVD CVE-2025-27839
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