CVE-2026-39808
A improper neutralization of special elements used in an os command ('os command injection')...
A improper neutralization of special elements used in an os command ('os command injection') vulnerability in Fortinet FortiSandbox 4.4.0 through 4.4.8 may allow attacker to execute unauthorized code or commands via <insert attack vector here>
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
A improper neutralization of special elements used in an os command ('os command injection') vulnerability in Fortinet FortiSandbox 4.4.0 through 4.4.8 may allow attacker to execute unauthorized code or commands via <insert attack vector here>
- Record
CVE-2026-39808- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C - Weakness
- CWE-78
- Updated
- 2026-11-02
EUVDEUVD-2026-22338
A improper neutralization of special elements used in an os command ('os command injection') vulnerability in Fortinet FortiSandbox 4.4.0 through 4.4.8 may allow attacker to execute unauthorized code or commands via <insert attack vector here>
- Record
EUVD-2026-22338- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-wfjv-vrx5-2cf2
A improper neutralization of special elements used in an os command ('os command injection')...
A improper neutralization of special elements used in an os command ('os command injection') vulnerability in Fortinet FortiSandbox 4.4.0 through 4.4.8 may allow attacker to execute unauthorized code or commands via <insert attack vector here>
- Record
GHSA-wfjv-vrx5-2cf2- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-78
- Updated
- 2026-11-02
CISA KEV No score
Fortinet FortiSandbox OS Command Injection Vulnerability
Fortinet FortiSandbox contains an OS command injection vulnerability that could allow an unauthenticated attacker to execute unauthorized code or commands via crafted HTTP requests.
- Record
CVE-2026-39808- Weakness
- CWE-78
- Updated
- 2026-11-02
NVD
A improper neutralization of special elements used in an os command ('os command injection') vulnerability in Fortinet FortiSandbox 4.4.0 through 4.4.8 may allow attacker to execute unauthorized code or commands via <insert attack vector here>
- Record
CVE-2026-39808- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-78
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | samu-delucas/CVE-2026-39808 | 2026-04-15 |
| PoC in GitHub | 0xBlackash/CVE-2026-39808 | 2026-04-18 |
| PoC in GitHub | ynsmroztas/FortiSandbox-RCE-Exploit-CVE-2026-39808 | 2026-04-21 |
| PoC in GitHub | HORKimhab/CVE-2026-39808 | 2026-06-17 |
| PoC in GitHub | error-inside/CVE-2026-39808 | 2026-06-18 |
| PoC in GitHub | gotr00t0day/CVE-2026-39808 | 2026-10-03 |
| PoC in GitHub | Ghost-Bx1/Fortinet-Exploits-CVE-2026-39808-106173-107656 | 2026-10-25 |
| Nuclei | Fortinet FortiSandbox - Command Injection |
History
| Recorded | Changed | Sources |
|---|---|---|
| exploitation, exploits | ||
| first indexed | CVE List, EUVD, GitHub Advisories, CISA KEV, Nuclei, NVD, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-39808 is a critical vulnerability (CVSS 9.1) in Fortinet Fortisandbox, published April 14, 2026. CISA lists it as known to be exploited, since July 16, 2026. EUVD reports exploitation since July 16, 2026. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 93.2%, the 99th percentile. No source names a fixed version.