Vulnerability · Published Sep 2, 2026 · Assigned by VulnCheck

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

Medium 6.1

In plain English

A medium-severity security flaw in UpSignOn from Septeo IT Solutions. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 1% of all known vulnerabilities).

Severity (CVSS 3.1)6.1Medium

Exploit odds (30 days)<0.1%top 99.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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 (as reported)

Vendor	Product	Versions
Septeo IT Solutions	UpSignOn	0 – before 7.19.0

Weakness: CWE-316 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

References

Release Notes release-notes
https://www.vulncheck.com/advisories/upsignon-sensitive-key-retention-in-memory third-party-advisory