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CVE-2026-75135

UpSignOn < 7.19.0 Sensitive Key Retention in Memory

UpSignOn for Windows before 7.19.0 contains a sensitive data exposure vulnerability that allows local attackers to recover the master password and decrypt vault contents by reading a retained backup key from the process memory of UpSignOn.exe, even after the vault has been re-locked. Attackers can extract the backup key from process memory to decrypt the encrypted master password backup stored in v6-vault1.DATA.txt, then use the recovered master password to decrypt the main vault and export all password manager entries in cleartext.

CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed
Vendors
Septeo It Solutions
Products
Upsignon
CVE-2026-75136

UpSignOn < 7.19.0 Biometric Key Exposure via Windows PasswordVault

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.

CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed
Vendors
Septeo It Solutions
Products
Upsignon
CVE-2026-75137

UpSignOn < 7.19.0 Sensitive Data Exposure in Process Memory after Lock

UpSignOn for Windows before 7.19.0 contains a sensitive data exposure vulnerability that allows local attackers to recover cleartext vault data from process memory even after the application has been locked. Attackers can use the PROCESS_VM_READ permission to read the memory space of UpSignOn.exe and extract sensitive fields including entry names, URLs, usernames, passwords, TOTP secrets, and notes.

CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed
Vendors
Septeo It Solutions
Products
Upsignon