CVE-2026-7864: CWE-497 Exposure of sensitive system information to an unauthorized control sphere in SEPPmail AG Secure Email Gateway
CVE-2026-7864 is a medium severity vulnerability in SEPPmail AG Secure Email Gateway versions before 15. 0. 4. It allows remote attackers to access sensitive server environment variables through an unauthenticated endpoint in the new GINA UI. This exposure of system information could aid attackers in further attacks. No official patch or remediation level has been confirmed yet.
AI Analysis
Technical Summary
The vulnerability CVE-2026-7864 affects SEPPmail AG Secure Email Gateway prior to version 15.0.4. It involves an unauthenticated endpoint in the new GINA UI that exposes server environment variables, classified under CWE-497 (Exposure of Sensitive Information to an Unauthorized Actor). The CVSS 4.0 base score is 6.9, indicating a medium severity with network attack vector, low complexity, no privileges or user interaction required, and limited confidentiality impact. No vendor advisory or patch information is currently available.
Potential Impact
Remote attackers can obtain sensitive system environment variables without authentication, potentially revealing information that could facilitate further attacks or reconnaissance. The confidentiality impact is limited, and no integrity or availability impacts are indicated.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, consider restricting access to the GINA UI endpoint or implementing network-level controls to limit exposure. Monitor vendor communications for updates on patches or official mitigations.
CVE-2026-7864: CWE-497 Exposure of sensitive system information to an unauthorized control sphere in SEPPmail AG Secure Email Gateway
Description
CVE-2026-7864 is a medium severity vulnerability in SEPPmail AG Secure Email Gateway versions before 15. 0. 4. It allows remote attackers to access sensitive server environment variables through an unauthenticated endpoint in the new GINA UI. This exposure of system information could aid attackers in further attacks. No official patch or remediation level has been confirmed yet.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability CVE-2026-7864 affects SEPPmail AG Secure Email Gateway prior to version 15.0.4. It involves an unauthenticated endpoint in the new GINA UI that exposes server environment variables, classified under CWE-497 (Exposure of Sensitive Information to an Unauthorized Actor). The CVSS 4.0 base score is 6.9, indicating a medium severity with network attack vector, low complexity, no privileges or user interaction required, and limited confidentiality impact. No vendor advisory or patch information is currently available.
Potential Impact
Remote attackers can obtain sensitive system environment variables without authentication, potentially revealing information that could facilitate further attacks or reconnaissance. The confidentiality impact is limited, and no integrity or availability impacts are indicated.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, consider restricting access to the GINA UI endpoint or implementing network-level controls to limit exposure. Monitor vendor communications for updates on patches or official mitigations.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- NCSC.ch
- Date Reserved
- 2026-05-05T12:56:45.255Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69fde35acbff5d8610d89564
Added to database: 5/8/2026, 1:21:30 PM
Last enriched: 5/8/2026, 1:37:02 PM
Last updated: 5/8/2026, 2:31:57 PM
Views: 4
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.