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CVE-2025-27839 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

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.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:4 MEDIUMVector:CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CNA: [email protected]CVSS-B:3.2 LOWVector:CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/tangem/tangem-sdk-android/commit/24588188fdb51ed469cd59d2c595128c1fe63b07	[email protected]	Source CodeVendor
https://github.com/tangem/tangem-sdk-android/releases/tag/release-app_5.18-409	[email protected]	Release NotesVendor
https://tangem.com/en/blog/post/app-update/	[email protected]	Release NotesVendor

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-1025	Comparison Using Wrong Factors	[email protected]

Affected Products

Product	Versions
Tangem SDK	All versions
CPE No CPEs found in CPE dictionary for this product. Remediation No remediation found in references.

Change History

3 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
Mar 8, 2025	New CVE Received	[email protected]