UpSignOn for Windows before 7.19.0 contains an insecure credential storage vulnerability that allows local attackers to retrieve the biometric unlock key stored in the Windows PasswordVault API without triggering any authentication prompt. Attackers can access the stored biometric key from a standard local process within the same Windows session to decrypt the protected vault files and export the entire password manager contents in cleartext.

Metrics

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

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Advisories

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://upsignon.eu/en/resources/release-notes/app#7.19.0 cve-icon cve-icon
https://www.vulncheck.com/advisories/upsignon-biometric-key-exposure-via-windows-passwordvault cve-icon cve-icon
History

Wed, 02 Sep 2026 19:30:00 +0000

Type Values Removed Values Added
Description UpSignOn for Windows before 7.19.0 contains an insecure credential storage vulnerability that allows local attackers to retrieve the biometric unlock key stored in the Windows PasswordVault API without triggering any authentication prompt. Attackers can access the stored biometric key from a standard local process within the same Windows session to decrypt the protected vault files and export the entire password manager contents in cleartext.
Title UpSignOn < 7.19.0 Biometric Key Exposure via Windows PasswordVault
Weaknesses CWE-522
References
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-09-02T19:15:59.598Z

Reserved: 2026-08-17T18:39:57.661Z

Link: CVE-2026-75136

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-02T20:17:36.877

Modified: 2026-09-02T20:17:36.877

Link: CVE-2026-75136

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-03T09:45:03Z

Weaknesses