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.
History

Thu, 03 Sep 2026 16:00:00 +0000

Type Values Removed Values Added
First Time appeared Septeo It Solutions
Septeo It Solutions upsignon
Vendors & Products Septeo It Solutions
Septeo It Solutions upsignon

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

Type Values Removed Values Added
Description 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.
Title UpSignOn < 7.19.0 Sensitive Key Retention in Memory
Weaknesses CWE-316
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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2026-09-02T19:15:25.752Z

Updated: 2026-09-02T19:15:25.752Z

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

Link: CVE-2026-75135

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-02T20:17:36.720

Modified: 2026-09-02T20:17:36.720

Link: CVE-2026-75135

cve-icon Redhat

No data.