CVE-2026-75136CWE-522

CVE-2026-75136

Medium · published September 3, 2026

CVSS v3.1
6.1
EPSS
0%
Percentile
4.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.1 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
CVSS v4.0
6.9 · 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
EPSS
0.00160 · 4.8th percentile
Weakness
CWE-522 · Insufficiently Protected Credentials
Published
2026-09-03T00:17Z
References (2)
https://upsignon.eu/en/resources/release-notes/app#7.19.0 · [email protected]https://www.vulncheck.com/advisories/upsignon-biometric-key-exposure-via-windows-passwordvault · [email protected]
EPSS history
Timeline
  • 04 SEP 03:44Z
    EPSS moved — → 0%
    epss
  • 02 SEP 19:15Z
    UpSignOn < 7.19.0 Biometric Key Exposure via Windows PasswordVault
    cvelistv5