Exposure of Sensitive Information to an Unauthorized Actor
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-497.
Summary
SEPPmail Secure Email Gateway before version 15.0.4 exposes server environment variables through an unauthenticated endpoint in the new GINA UI, allowing remote attackers to obtain sensitive system information.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA Secure Email Gateway (SEPPmail AG) Fixed in 15.0.4
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
SEPPmail Secure Email Gateway 15.0.4
5 records Highest priority Priority MEDIUM 4 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2026-32138 Local File Inclusion (LFI) and Arbitrary File DeletionPriority MEDIUM 60
- TI-2026-32136 Missing Authorization in GINAv2Priority MEDIUM 48
- TI-2026-32137 Insecure deserialization in SEPPmail Secure Email GatewayPriority MEDIUM 42
Timeline
- 2026-10-02 Threatist record created from CVE-2026-7864
- 2026-10-03 Alias added: GHSA-987g-rmgr-mpfx
- 2026-10-25 EPSS moved to the 95th–99th percentile
- 2026-10-25 Priority changed: LOW → MEDIUM
References
More SEPPmail vulnerabilities
- TI-2026-02349 SEPPmail User Web Interface Arbitrary File Write to RCE CVSS 4.0CRITICAL 10.0
- TI-2026-32138 Local File Inclusion (LFI) and Arbitrary File Deletion CVSS 4.0HIGH 8.8
- TI-2021-11768 SEPPMail's web frontend, user input is not embedded correctly in the web page and… CVSS 3.1MEDIUM 6.1
- TI-2021-11767 The SEPPmail solution is vulnerable to a Cross-Site Scripting vulnerability (XSS)… CVSS 3.1MEDIUM 6.1
- TI-2026-32139 Unauthenticated remote code execution in SEPPmail Secure Email Gateway CVSS 4.0CRITICAL 9.3
- TI-2026-21852 PDF Password CMDi CVSS 4.0CRITICAL 9.5
Sources
- CVE-2026-7864 · CVE Program
- CVE-2026-7864 · NVD
- FIRST EPSS
- GHSA-987g-rmgr-mpfx · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences