Information disclosure in Fortinet FortiMail
Priority LOW 31CWE-200Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-200.
Summary
A exposure of sensitive information to an unauthorized actor in Fortinet FortiMail versions 6.0.9 and below, FortiMail versions 6.2.4 and below FortiMail versions 6.4.1 and 6.4.0 allows attacker to obtain potentially sensitive software-version information via client-side resources inspection.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00793 56th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Fortinet | Fortinet FortiMail | FortiMail 6.4.1, 6.4.0, 6.2.4, 6.2.3, 6.2.2, 6.2.1, 6.2.0, 6.0.9, 6.0.8, 6.0.7, 6.0.6, 6.0.5, 6.0.4, 6.0.3, 6.0.2, 6.0.1, 6.0.0, 5.4.12, 5.4.11, 5.4.10, 5.4.9, 5.4.8, 5.4.7, 5.4.6, 5.4.5, 5.4.4, 5.4.3, 5.4.2, 5.4.1, 5.4.0, 5.3.13, 5.3.12, 5.3.10, 5.3.9, 5.3.8, 5.3.7, 5.3.6, 5.3.5, 5.3.4, 5.3.3, 5.3.2, 5.3.1, 5.3.0, 5.2.10, 5.2.9, 5.2.8, 5.2.7, 5.2.6, 5.2.5, 5.2.4, 5.2.3, 5.2.2, 5.2.1, 5.2.0, 5.1.7, 5.1.6, 5.1.5, 5.1.4, 5.1.3, 5.1.2, 5.1.1, 5.1.0, 5.0.11, 5.0.10, 5.0.9, 5.0.8, 5.0.7, 5.0.6, 5.0.5, 5.0.4, 5.0.3, 5.0.2, 5.0.1, 5.0.0, 4.3.9, 4.3.8, 4.3.7, 4.3.6, 4.3.5, 4.3.4, 4.3.3, 4.3.2, 4.3.1, 4.3.0, 4.2.4, 4.2.3, 4.2.2, 4.2.1, 4.2.0, 4.1.3, 4.1.2, 4.1.1, 4.1.0, 4.0.5, 4.0.4, 4.0.3, 4.0.1 | — | No fix listed | CNA |
- Fortinet FortiMail VendorFortinet Affected FortiMail 6.4.1, 6.4.0, 6.2.4, 6.2.3, 6.2.2, 6.2.1, 6.2.0, 6.0.9, 6.0.8, 6.0.7, 6.0.6, 6.0.5, 6.0.4, 6.0.3, 6.0.2, 6.0.1, 6.0.0, 5.4.12, 5.4.11, 5.4.10, 5.4.9, 5.4.8, 5.4.7, 5.4.6, 5.4.5, 5.4.4, 5.4.3, 5.4.2, 5.4.1, 5.4.0, 5.3.13, 5.3.12, 5.3.10, 5.3.9, 5.3.8, 5.3.7, 5.3.6, 5.3.5, 5.3.4, 5.3.3, 5.3.2, 5.3.1, 5.3.0, 5.2.10, 5.2.9, 5.2.8, 5.2.7, 5.2.6, 5.2.5, 5.2.4, 5.2.3, 5.2.2, 5.2.1, 5.2.0, 5.1.7, 5.1.6, 5.1.5, 5.1.4, 5.1.3, 5.1.2, 5.1.1, 5.1.0, 5.0.11, 5.0.10, 5.0.9, 5.0.8, 5.0.7, 5.0.6, 5.0.5, 5.0.4, 5.0.3, 5.0.2, 5.0.1, 5.0.0, 4.3.9, 4.3.8, 4.3.7, 4.3.6, 4.3.5, 4.3.4, 4.3.3, 4.3.2, 4.3.1, 4.3.0, 4.2.4, 4.2.3, 4.2.2, 4.2.1, 4.2.0, 4.1.3, 4.1.2, 4.1.1, 4.1.0, 4.0.5, 4.0.4, 4.0.3, 4.0.1 Fixed in — No fix listed CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:fortinet:fortimail:*:*:*:*:*:*:*:* | up to 6.0.9 | Vulnerable | Fortinet |
| cpe:2.3:a:fortinet:fortimail:6.2.0:*:*:*:*:*:*:* | 6.2.0 | Vulnerable | Fortinet |
| cpe:2.3:a:fortinet:fortimail:6.2.1:*:*:*:*:*:*:* | 6.2.1 | Vulnerable | Fortinet |
| cpe:2.3:a:fortinet:fortimail:6.2.2:*:*:*:*:*:*:* | 6.2.2 | Vulnerable | Fortinet |
| cpe:2.3:a:fortinet:fortimail:6.2.3:*:*:*:*:*:*:* | 6.2.3 | Vulnerable | Fortinet |
| cpe:2.3:a:fortinet:fortimail:6.2.4:*:*:*:*:*:*:* | 6.2.4 | Vulnerable | Fortinet |
| cpe:2.3:a:fortinet:fortimail:6.4.0:*:*:*:*:*:*:* | 6.4.0 | Vulnerable | Fortinet |
| cpe:2.3:a:fortinet:fortimail:6.4.1:*:*:*:*:*:*:* | 6.4.1 | Vulnerable | Fortinet |
- cpe:2.3:a:fortinet:fortimail:*:*:*:*:*:*:*:* Versions up to 6.0.9 Vulnerable ·Fortinet
- cpe:2.3:a:fortinet:fortimail:6.2.0:*:*:*:*:*:*:* Versions 6.2.0 Vulnerable ·Fortinet
- cpe:2.3:a:fortinet:fortimail:6.2.1:*:*:*:*:*:*:* Versions 6.2.1 Vulnerable ·Fortinet
- cpe:2.3:a:fortinet:fortimail:6.2.2:*:*:*:*:*:*:* Versions 6.2.2 Vulnerable ·Fortinet
- cpe:2.3:a:fortinet:fortimail:6.2.3:*:*:*:*:*:*:* Versions 6.2.3 Vulnerable ·Fortinet
- cpe:2.3:a:fortinet:fortimail:6.2.4:*:*:*:*:*:*:* Versions 6.2.4 Vulnerable ·Fortinet
- cpe:2.3:a:fortinet:fortimail:6.4.0:*:*:*:*:*:*:* Versions 6.4.0 Vulnerable ·Fortinet
- cpe:2.3:a:fortinet:fortimail:6.4.1:*:*:*:*:*:*:* Versions 6.4.1 Vulnerable ·Fortinet
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-15933
- 2026-10-03 Alias added: GHSA-x8fg-99gc-5mrc
References
More Fortinet Fortimail vulnerabilities
- TI-2026-65779 Path traversal in Fortinet FortiMail KEVCVSS 3.1CRITICAL 9.8
- TI-2025-23811 Stack-based buffer overflow in Fortinet FortiNDR KEVCVSS 3.1CRITICAL 9.8
- TI-2020-07433 Improper authentication in Fortinet FortiMail CVSS 3.1CRITICAL 9.8
- TI-2021-14584 An improper authentication vulnerability in FortiMail before 7.0.1 may allow a remote… CVSS 3.1CRITICAL 9.8
- TI-2021-06324 SQL injection in Fortinet FortiMail CVSS 3.1CRITICAL 9.8
- TI-2023-25708 Improper access control in Fortinet FortiMail CVSS 3.1CRITICAL 9.0
Sources
- CVE-2020-15933 · CVE Program
- CVE-2020-15933 · NVD
- FIRST EPSS
- GHSA-x8fg-99gc-5mrc · 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