CVE-2026-39808 (GCVE-0-2026-39808)
Vulnerability from cvelistv5 – Published: 2026-04-14 15:38 – Updated: 2026-07-17 03:56- CWE-78 - Execute unauthorized code or commands
| URL | Tags |
|---|---|
| https://fortiguard.fortinet.com/psirt/FG-IR-26-100 | |
| https://github.com/samu-delucas/CVE-2026-39808 | exploit |
| https://www.cisa.gov/known-exploited-vulnerabilit… | government-resource |
| Vendor | Product | Version | |
|---|---|---|---|
| Fortinet | FortiSandbox |
Affected:
4.4.0 , ≤ 4.4.8
(semver)
cpe:2.3:a:fortinet:fortisandbox:4.4.8:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortisandbox:4.4.7:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortisandbox:4.4.6:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortisandbox:4.4.5:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortisandbox:4.4.4:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortisandbox:4.4.3:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortisandbox:4.4.2:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortisandbox:4.4.1:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortisandbox:4.4.0:*:*:*:*:*:*:* |
|
| Fortinet | FortiSandbox PaaS |
Affected:
23.4.4374
Affected: 23.4.4350 Affected: 23.3.4329 Affected: 23.1.4245 Affected: 22.2.4151 Affected: 22.2.4134 Affected: 22.1.4113 Affected: 21.4.4072 Affected: 21.3.4055 cpe:2.3:a:fortinet:fortisandboxpaas:23.4.4374:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortisandboxpaas:23.4.4350:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortisandboxpaas:23.3.4329:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortisandboxpaas:23.1.4245:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortisandboxpaas:22.2.4151:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortisandboxpaas:22.2.4134:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortisandboxpaas:22.1.4113:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortisandboxpaas:21.4.4072:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortisandboxpaas:21.3.4055:*:*:*:*:*:*:* |
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
Exploited: Yes
Timestamps
Scope
Evidence
Type: Vendor Report
Signal: Successful Exploitation
Confidence: 80%
Source: cisa-kev
Details
| Cwes | CWE-78 |
|---|---|
| Feed | CISA Known Exploited Vulnerabilities Catalog |
| Product | FortiSandbox |
| Due Date | 2026-07-19 |
| Date Added | 2026-07-16 |
| Vendorproject | Fortinet |
| Vulnerabilityname | Fortinet FortiSandbox OS Command Injection Vulnerability |
| Knownransomwarecampaignuse | Unknown |
References
Shadowserver
Known Exploited Vulnerability - GCVE BCP-07 Compliant
Exploited: Yes
Timestamps
Scope
Evidence
Type: Honeypot
Signal: In The Wild Attempts
Confidence: 70%
Source: shadowserver
Details
| 1D | 1 |
|---|---|
| Iot | no |
| Feed | Shadowserver Foundation honeypot/exploited-vulnerabilities |
| Type | http-scan |
| Class | None |
| 7D Avg | 0 |
| Vendor | |
| 30D Avg | 0 |
| 90D Avg | 0 |
| Product | |
| Cisa Kev | no |
| Connections | 1 |
| Observation Date | 2026-07-10 |
| Vulnerability Class | None |
| Vulnerability Score | None |
| Vulnerability Severity | None |
References
KEVIntel
Known Exploited Vulnerability - GCVE BCP-07 Compliant
Exploited: Yes
Timestamps
Scope
Evidence
Type: Public Report
Signal: Successful Exploitation
Confidence: 70%
Source: kevintel
Details
| Feed | KEVIntel (kevintel.com) |
|---|---|
| Title | A improper neutralization of special elements used in an os command ('os command injection') vulnerability in Fortinet FortiSandbox 4.4.0 through... |
| Vendor | Fortinet |
| Product | FortiSandbox, FortiSandbox PaaS |
| Added Date | 2026-06-12T13:59:12.791Z |
| Cvss Score | 9.8 |
| Epss Score | 0.66168 |
| Cvss Severity | CRITICAL |
| Epss Percentile | 0.9918 |
| Used In Malware | unknown |
| Ahead Of Cisa Kev | None |
| Not Yet In Cisa Kev | True |
References
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"title": "CVE-2026-39808",
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},
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-39808\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"active\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-07-16T17:45:11.106860Z\"}}}, {\"other\": {\"type\": \"kev\", \"content\": {\"dateAdded\": \"2026-07-16\", \"reference\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-39808\"}}}], \"references\": [{\"url\": \"https://github.com/samu-delucas/CVE-2026-39808\", \"tags\": [\"exploit\"]}, {\"url\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-39808\", \"tags\": [\"government-resource\"]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-04-14T16:37:38.704Z\"}, \"timeline\": [{\"lang\": \"en\", \"time\": \"2026-07-16T00:00:00.000Z\", \"value\": \"CVE-2026-39808 added to CISA KEV\"}]}], \"cna\": {\"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 9.1, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"CRITICAL\", \"vectorString\": \"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\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"HIGH\"}}], \"affected\": [{\"cpes\": [\"cpe:2.3:a:fortinet:fortisandbox:4.4.8:*:*:*:*:*:*:*\", \"cpe:2.3:a:fortinet:fortisandbox:4.4.7:*:*:*:*:*:*:*\", \"cpe:2.3:a:fortinet:fortisandbox:4.4.6:*:*:*:*:*:*:*\", \"cpe:2.3:a:fortinet:fortisandbox:4.4.5:*:*:*:*:*:*:*\", \"cpe:2.3:a:fortinet:fortisandbox:4.4.4:*:*:*:*:*:*:*\", \"cpe:2.3:a:fortinet:fortisandbox:4.4.3:*:*:*:*:*:*:*\", \"cpe:2.3:a:fortinet:fortisandbox:4.4.2:*:*:*:*:*:*:*\", \"cpe:2.3:a:fortinet:fortisandbox:4.4.1:*:*:*:*:*:*:*\", \"cpe:2.3:a:fortinet:fortisandbox:4.4.0:*:*:*:*:*:*:*\"], \"vendor\": \"Fortinet\", \"product\": \"FortiSandbox\", \"versions\": [{\"status\": \"affected\", \"version\": \"4.4.0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.4.8\"}], \"defaultStatus\": \"unaffected\"}, {\"cpes\": [\"cpe:2.3:a:fortinet:fortisandboxpaas:23.4.4374:*:*:*:*:*:*:*\", \"cpe:2.3:a:fortinet:fortisandboxpaas:23.4.4350:*:*:*:*:*:*:*\", \"cpe:2.3:a:fortinet:fortisandboxpaas:23.3.4329:*:*:*:*:*:*:*\", \"cpe:2.3:a:fortinet:fortisandboxpaas:23.1.4245:*:*:*:*:*:*:*\", \"cpe:2.3:a:fortinet:fortisandboxpaas:22.2.4151:*:*:*:*:*:*:*\", \"cpe:2.3:a:fortinet:fortisandboxpaas:22.2.4134:*:*:*:*:*:*:*\", \"cpe:2.3:a:fortinet:fortisandboxpaas:22.1.4113:*:*:*:*:*:*:*\", \"cpe:2.3:a:fortinet:fortisandboxpaas:21.4.4072:*:*:*:*:*:*:*\", \"cpe:2.3:a:fortinet:fortisandboxpaas:21.3.4055:*:*:*:*:*:*:*\"], \"vendor\": \"Fortinet\", \"product\": \"FortiSandbox PaaS\", \"versions\": [{\"status\": \"affected\", \"version\": \"23.4.4374\"}, {\"status\": \"affected\", \"version\": \"23.4.4350\"}, {\"status\": \"affected\", \"version\": \"23.3.4329\"}, {\"status\": \"affected\", \"version\": \"23.1.4245\"}, {\"status\": \"affected\", \"version\": \"22.2.4151\"}, {\"status\": \"affected\", \"version\": \"22.2.4134\"}, {\"status\": \"affected\", \"version\": \"22.1.4113\"}, {\"status\": \"affected\", \"version\": \"21.4.4072\"}, {\"status\": \"affected\", \"version\": \"21.3.4055\"}], \"defaultStatus\": \"unaffected\"}], \"solutions\": [{\"lang\": \"en\", \"value\": \"Upgrade to FortiSandbox version 4.4.9 or above\\nUpgrade to FortiSandbox PaaS version 5.0.2 or above\"}], \"references\": [{\"url\": \"https://fortiguard.fortinet.com/psirt/FG-IR-26-100\", \"name\": \"https://fortiguard.fortinet.com/psirt/FG-IR-26-100\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A improper neutralization of special elements used in an os command (\u0027os command injection\u0027) vulnerability in Fortinet FortiSandbox 4.4.0 through 4.4.8 may allow attacker to execute unauthorized code or commands via \u003cinsert attack vector here\u003e\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-78\", \"description\": \"Execute unauthorized code or commands\"}]}], \"providerMetadata\": {\"orgId\": \"6abe59d8-c742-4dff-8ce8-9b0ca1073da8\", \"shortName\": \"fortinet\", \"dateUpdated\": \"2026-04-14T15:38:02.089Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-39808\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-07-17T03:56:21.793Z\", \"dateReserved\": \"2026-04-07T15:24:03.838Z\", \"assignerOrgId\": \"6abe59d8-c742-4dff-8ce8-9b0ca1073da8\", \"datePublished\": \"2026-04-14T15:38:02.089Z\", \"assignerShortName\": \"fortinet\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.