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9.1
CVE-2026-39808EXPLOITEDPATCHED
Fortinet · FortiSandbox

CVE-2026-39808: A improper neutralization of special elements used in an os command ('os command injection') vulnerability in Fortinet F

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>

Affected Products

VendorProductVersions
FortinetFortiSandbox4.4.0, 23.4.4374, 23.4.4350, 23.3.4329, 23.1.4245, 22.2.4151, 22.2.4134, 22.1.4113, 21.4.4072, 21.3.4055

Also Affects

Downstream vendors/products affected by this vulnerability

VendorProductSourceConfidence
fortinetfortisandbox paasmitre_affected90%

References

  • https://fortiguard.fortinet.com/psirt/FG-IR-26-100

Related News (2 articles)

Tier C
VulDB6h ago
CVE-2026-39808 | Fortinet FortiSandbox/FortiSandbox PaaS up to 4.4.8 os command injection (FG-IR-26-100)
→ No new info (linked only)
Tier A
Fortinet PSIRT15h ago
OS Command Injection through API endpoint
→ No new info (linked only)
CVSS 3.19.1 CRITICAL
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C
CISA KEV❌ No
Actively exploited✅ Yes
Patch available
4.4.9
CWECWE-78
PublishedApr 14, 2026
Last enriched5h agov3
Tags
FortiSandbox PaaS
Trending Score74
Source articles2
Independent2
Info Completeness10/14
Missing: epss, kev, iocs, mitre_attack

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Related CVEs (5)

CRITICALCVE-2026-21643EXPKEV
CVE-2026-21643: An improper neutralization of special elements used in an sql command ('sql injection') vulnerability in Fortinet FortiC
Trending: 152
CRITICALCVE-2026-35616EXPKEV
CVE-2026-35616: A improper access control vulnerability in Fortinet FortiClientEMS 7.4.5 through 7.4.6 may allow an unauthenticated atta
Trending: 131
CRITICALCVE-2026-39813EXP
CVE-2026-39813: A path traversal: '../filedir' vulnerability in Fortinet FortiSandbox 5.0.0 through 5.0.5, FortiSandbox 4.4.0 through 4.
Trending: 74
HIGHCVE-2026-22828EXP
CVE-2026-22828: A heap-based buffer overflow vulnerability in Fortinet FortiAnalyzer Cloud 7.6.2 through 7.6.4, FortiManager Cloud 7.6.2
Trending: 62
HIGHCVE-2026-39815EXP
CVE-2026-39815: A improper neutralization of special elements used in an sql command ('sql injection') vulnerability in Fortinet FortiDD
Trending: 62

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Verification

State: verified
Confidence: 0%

Vulnerability Timeline

CVE Published
Apr 14, 2026
Discovered by ZDM
Apr 14, 2026
Updated: affectedVersions, exploitAvailable, activelyExploited, patchAvailable
Apr 14, 2026
Updated: tags
Apr 14, 2026
Actively Exploited
Apr 14, 2026
Exploit Available
Apr 14, 2026
Patch Available
Apr 14, 2026

Version History

v3
Last enriched 5h ago
v3Tier C5h ago

Updated description with new details and added tag for FortiSandbox PaaS.

tags
via VulDB
v2Tier A7h ago

Updated affected versions to include 4.4.9, marked exploit as available, and noted that the vulnerability is actively exploited.

affectedVersionsexploitAvailableactivelyExploitedpatchAvailable
via Fortinet PSIRT
v17h ago

Initial creation