CVE-2026-75135 Septeo IT Solutions CVE debrief

Who should care

Security teams and administrators responsible for managing UpSignOn for Windows installations should be aware of this vulnerability and take immediate action to upgrade to version 7.19.0 or later. Additionally, security teams should review and update incident response plans to address potential exploitation and implement compensating controls to monitor and restrict access to sensitive data.

Technical summary

The 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. The vulnerability is caused by the retention of a backup key in the process memory of UpSignOn.exe, which can be extracted by attackers to decrypt the encrypted master password backup and access the main vault. This vulnerability enables attackers to 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. Local attackers can exploit this vulnerability to gain unauthorized access to sensitive data.

Defensive priority

Medium-priority defensive actions are required to address the sensitive data exposure vulnerability in UpSignOn for Windows before 7.19.0.

Recommended defensive actions

• Inventory and verify UpSignOn for Windows installations and ensure version 7.19.0 or later is deployed.
• Implement compensating controls to monitor and restrict access to sensitive data.
• Review and update incident response plans to address potential exploitation.
• Conduct vulnerability scanning and penetration testing to identify potential weaknesses.
• Enhance monitoring and exception tracking to detect potential exploitation attempts.

Evidence notes

The CVE description indicates that UpSignOn for Windows before 7.19.0 contains a sensitive data exposure vulnerability. Local attackers can recover the master password and decrypt vault contents by reading a retained backup key from the process memory of UpSignOn.exe. The vulnerability allows attackers to 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.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.