# CVE-2025-27839

## Summary

- **CVE ID:** CVE-2025-27839
- **Severity:** LOW
- **CVSS Score:** 3.2 (CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N)
- **CWE:** CWE-1025
- **Published:** Mar 7, 2025
- **Last Modified:** Mar 13, 2026

## 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.

## Affected Products

- Tangem — SDK (0)

## References

- [CNA](https://tangem.com/en/blog/post/app-update/)
- [CNA](https://github.com/tangem/tangem-sdk-android/commit/24588188fdb51ed469cd59d2c595128c1fe63b07)
- [CNA](https://github.com/tangem/tangem-sdk-android/releases/tag/release-app_5.18-409)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.35%
- **EPSS Percentile:** 28.6

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._