{"id":"CVE-2026-25089","published":"2026-06-09T16:16:39Z","modified":"2026-07-23T08:10:00Z","title":"Fortinet FortiSandbox OS Command Injection Vulnerability","vendor":"Fortinet","product":"FortiSandbox","tier":"core","eol":null,"description":{"text":"A improper neutralization of special elements used in an os command ('os command injection') vulnerability in Fortinet FortiSandbox 5.0.0 through 5.0.5, FortiSandbox 4.4.0 through 4.4.8, FortiSandbox 4.2 all versions, FortiSandbox Cloud 5.0.4 through 5.0.5, FortiSandbox PaaS 5.0.4 through 5.0.5 may allow an unauthenticated attacker to execute unauthorized commands via specifically crafted HTTP requests","provenance":"source","from":"NVD"},"summary":{"text":"Fortinet FortiSandbox contains an OS command injection flaw (CWE: improper neutralization of special elements used in an OS command) affecting versions 5.0.0 through 5.0.5, 4.4.0 through 4.4.8, all 4.2 releases, and FortiSandbox Cloud and PaaS 5.0.4 through 5.0.5. An unauthenticated remote attacker who sends specially crafted HTTP requests can execute arbitrary unauthorized commands, with no authentication or user interaction required.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-29T08:31:54Z"},"cvss":{"score":9.8,"severity":"CRITICAL","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.76112,"percentile":0.99532,"date":"2026-10-31","provenance":"source"},"kev":{"dateAdded":"2026-07-16","dueDate":"2026-07-19","ransomware":false,"requiredAction":"Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.","notes":"https://fortiguard.fortinet.com/psirt/FG-IR-26-141 ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-25089","provenance":"source"},"vulncheckKev":{"dateAdded":"2026-06-15","exploitedFirstSeen":"2026-06-15","ransomware":false,"evidence":[{"url":"https://x.com/DefusedCyber/status/2066575288503255274","date":"2026-06-15"},{"url":"https://www.recordedfuture.com/blog/june-2026-cve-landscape","date":"2026-07-10"},{"url":"https://previdian.com/CVE-2026-25089","date":"2026-07-16"},{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2026-07-16"},{"url":"https://www.recordedfuture.com/blog/july-2026-cve-landscape","date":"2026-08-07"}],"evidenceTotal":5,"provenance":"source"},"exploited":true,"otx":null,"cwes":[{"id":"CWE-78","name":"Improper Neutralization of Special Elements used in an OS Command"}],"references":[{"url":"https://fortiguard.fortinet.com/psirt/FG-IR-26-141","tags":["Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-25089","tags":["US Government Resource"]}],"techniques":[{"id":"T1190","name":"Exploit Public-Facing Application","tactics":["initial-access"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: Unauthenticated HTTP requests exploit public-facing application","mappingType":"exploitation_technique","evidence":[{"from":"description","quote":"may allow an unauthenticated attacker to execute unauthorized commands via specifically crafted HTTP requests","start":296,"end":405}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"},{"id":"T1059","name":"Command and Scripting Interpreter","tactics":["execution"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: OS command injection yields command execution","mappingType":"primary_impact","evidence":[{"from":"description","quote":"may allow an unauthenticated attacker to execute unauthorized commands","start":296,"end":366}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2026-35443","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-35443","exploited":true,"exploitedSince":"2026-07-16","provenance":"source"},"exploits":[],"exploitSources":{"pocGithub":{"count":2,"skipped":0,"earliest":"2026-06-10","earliestUrl":"https://github.com/HORKimhab/CVE-2026-25089","repos":[{"name":"HORKimhab/CVE-2026-25089","url":"https://github.com/HORKimhab/CVE-2026-25089","stars":6,"created":"2026-06-10"},{"name":"0xBlackash/CVE-2026-25089","url":"https://github.com/0xBlackash/CVE-2026-25089","stars":3,"created":"2026-06-12"}]},"first":{"date":"2026-06-10","source":"PoC-in-GitHub","url":"https://github.com/HORKimhab/CVE-2026-25089"},"provenance":"source"},"exploitRefs":[],"flow":[{"stage":"exploitation","techniques":["T1190"],"provenance":"ai"},{"stage":"primary","techniques":["T1059"],"provenance":"ai"}],"timeline":[{"date":"2026-06-09","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-25089","provenance":"source"},{"date":"2026-06-10","kind":"exploit-public","label":"First public exploit: PoC-in-GitHub","url":"https://github.com/HORKimhab/CVE-2026-25089","provenance":"source"},{"date":"2026-06-15","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://x.com/DefusedCyber/status/2066575288503255274","provenance":"source"},{"date":"2026-07-16","kind":"kev","label":"Added to CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","provenance":"source"},{"date":"2026-07-16","kind":"euvd-exploited","label":"ENISA EUVD: exploited","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-35443","provenance":"source"}],"speed":{"daysToPublicExploit":1,"firstExploitFrom":"PoC-in-GitHub","daysToKev":37},"priority":{"score":71.8,"factors":[{"name":"In a KEV catalog","points":35.0,"detail":"listed in CISA KEV and VulnCheck KEV"},{"name":"Recent KEV listing","points":5.0,"detail":"added 139 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":19.91,"detail":"percentile 0.9953"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":5.0,"detail":"2 PoC-in-GitHub repos"},{"name":"Mentioned in OTX pulses","points":0.0,"detail":"0 pulses"},{"name":"CVSS severity","points":6.86,"detail":"base score 9.8"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]},"lineage":{"familyId":"fam-class-fortinet-fortisandbox-cwe-78"}}