What’s Vulnerable › Vulnerabilities

CVE-2026-75135: UpSignOn < 7.19.0 Sensitive Key Retention in Memory

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-02 · updated 2026-09-08
• Weakness: CWE-316

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.

Affected products

• Septeo IT Solutions UpSignOn: before 7.19.0 — fixed in 7.19.0

How to fix

Upgrade to a fixed version: Septeo IT Solutions UpSignOn 7.19.0. Check the vendor advisory for mitigations.

References

• https://upsignon.eu/en/resources/release-notes/app#7.19.0
• https://www.vulncheck.com/advisories/upsignon-sensitive-key-retention-in-memory

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