CVE-2026-75135 UpSignOn < 7.19.0 Sensitive Key Retention in Memory
Local attackers can extract the master password from process memory to decrypt and export all stored password entries.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-75135?
CVE-2026-75135 is a medium-severity vulnerability in Septeo IT Solutions UpSignOn, published on 2 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
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.
Weakness: CWE-316
Which versions are affected by CVE-2026-75135?
How do I fix CVE-2026-75135?
No fix has been published for CVE-2026-75135 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-75135 being exploited?
There is no known exploitation of CVE-2026-75135 in the wild and no public exploit code.
Sources
Also known as GHSA-9258-5wrj-fw57.