{"id":"CVE-2026-75135","title":"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 UpSignO…","summary":"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 UpSignO…","severity":"medium","cvss":6.1,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N","cwe":["CWE-316"],"published":"2026-09-02","updated":"2026-09-08","sourceUpdated":"2026-09-08T20:18:59.270","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-75135","references":[{"url":"https://upsignon.eu/en/resources/release-notes/app#7.19.0","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/upsignon-sensitive-key-retention-in-memory","label":"disclosure@vulncheck.com"}],"tags":["nvd"],"epss":0.00072,"epssPercentile":0.00064,"ingestedAt":"2026-09-05T20:44:35.535Z","slug":"CVE-2026-75135","body":"## Overview\n\nUpSignOn 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":34,"depthScoreParts":{"impact":33.6,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}