TI-2025-20610 Aliases CVE-2025-27839 GHSA-jmqj-768c-pw4r

operations/attestation/AttestationTask.kt in the Tangem SDK before 5.18.3 for Android has…

LOW 16CWE-1025Published 2025-03-07 · Updated 2025-03-10

Key facts

Attack vector: Local
Privileges required: None
User interaction: None
Attack complexity: High
Impact type: —
Confidentiality · integrity · availability: None · Low · None
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00361 30th percentileScored 2026-11-07

Fix Fixed SDK (Tangem): 5.18.3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Tangem	SDK	before 5.18.3	5.18.3	Patch available	CNA

SDK VendorTangem Affected before 5.18.3 Fixed in 5.18.3 Patch available CNA

Remediation

Fix · CNA SDK (Tangem) Fixed in 5.18.3

Timeline

2026-10-02 Threatist record created from CVE-2025-27839
2026-10-03 Alias added: GHSA-jmqj-768c-pw4r

References

Other 3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences