CVE•Published 2026-04-14•Modified 2026-07-17•2 articles on news•5 live references•NVD data
CVE-2026-39808Fortinet · Fortisandbox
Vulnerability data via NVD (ingested)
CVSS v3.1
9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
99
Exploit Prediction Scoring System · top 1% of all CVEs
Weaknesses (CWE)
Description
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>
Timeline
Published 2026-04-14
Modified 2026-07-17
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag0 hosts
vuln:CVE-2026-39808Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Fortinet Fortisandbox"All exposed Fortinet Fortisandbox instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Fortisandbox"HTTP body or banner mentions "Fortisandbox" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2026-39808Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-39808Censys host search filtered to this CVE id.
grep.app
CVE-2026-39808Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-39808GitHub code search for direct mentions.
Google dork
"CVE-2026-39808" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub (8)
CVE-2026-398088 repos
Ostorlab/KEVunknown
Ostorlab KEV: One-command to detect most remotely known exploitable vulnerabilities. Sourced from CISA KEV, Google's Tsunami, Ostorlab's Asteroid and Bug Bounty programs.
DarkFunct/TK-CVE-RepoPython
TK-CVE-Repo
ynsmroztas/FortiSandbox-RCE-Exploit-CVE-2026-39808Python
FortiSandbox RCE Scanner — CVE-2026-39808
opendr-io/causalityJupyter Notebook
The difference between exploitation prediction and detection is akin to the difference between detecting a missile launch or a detonation. Every avoided exploitation cycle saves hu…
samu-delucas/CVE-2026-39808unknown
PoC for Unauthenticated RCE in FortiSandbox via CVE-2026-39808
barmi/cve-patch-auditorGo
Audit CVE impact, patch status, remediation progress, and verification results across systems.
0xBlackash/CVE-2026-39808Python
CVE-2026-39808
gotr00t0day/CVE-2026-39808Python
An unauthenticated OS command injection vulnerability