TTPwire Vol. 1 · MITRE ATT&CK·Tagged

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CIS Advisories

Multiple Vulnerabilities in Fortinet Products Could Allow for Arbitrary Code Execution

2026-04-14 · Read original ↗

ATT&CK techniques detected

9 predictions
T1190Exploit Public-Facing Application
98%
") vulnerability [ cwe - 89 ] in forticlientems may allow an authenticated attacker to run arbitrary sql queries on the database via sending crafted requests. ( cve - 2026 - 39809 ) - a path traversal vulnerability [ cwe - 24 ] in fortisandbox jrpc api may allow an unauthenticated…"
T1190Exploit Public-Facing Application
98%
"' cross - site scripting ' ) vulnerability [ cwe - 79 ] in fortisandbox and fortisandbox cloud may allow an attacker to perform an xss attack via crafted http requests. ( cve - 2025 - 61886 ) - an improper neutralization of special elements used in an sql command ( ' sql injectio…"
T1190Exploit Public-Facing Application
97%
"- fortiweb 8. 0. 0 through 8. 0. 3 risk : government : businesses : home users : technical summary : multiple vulnerabilities have been discovered in fortinet products, the most severe of which could allow for arbitrary code execution. details of the vulnerabilities are as follow…"
T1190Exploit Public-Facing Application
96%
"##ing ( xss ) attack via crafted http requests. ( cve - 2026 - 22154 ) - an exposure of sensitive information to an unauthorized actor vulnerability [ cwe - 200 ] in fortindr and fortivoice may allow a remote authenticated attacker with at least read - only permission on system m…"
T1190Exploit Public-Facing Application
95%
"unauthenticated attacker on the same local ip subnet to write device configuration via specially crafted requests. ( cve - 2025 - 53847 ) - multiple relative path traversal vulnerabilities [ cwe - 23 ] in fortiweb may allow a local privileged attacker to execute unauthorized code…"
T1190Exploit Public-Facing Application
88%
"limitation of a pathname to a restricted directory ( ' path traversal ' ) [ cwe - 22 ] in the command line interpreter of fortios, fortipam, fortiproxy and fortiswitchmanager may allow a privileged attacker to achieve arbitrary write or delete files via specifically crafted argum…"
T1078.001Default Accounts
85%
"perform periodic external penetration tests : perform periodic external penetration tests based on program requirements, no less than annually. external penetration testing must include enterprise and environmental reconnaissance to detect exploitable information. penetration tes…"
T1190Exploit Public-Facing Application
54%
"secure message exchange and radius queries, if configured. ( cve - 2026 - 21742, cve - 2026 - 22155 ) - an insufficiently protected credentials vulnerability [ cwe - 522 ] in fortisanbox and fortisanbox paas gui may allow an authenticated administrator to read ldap server credent…"
T1068Exploitation for Privilege Escalation
50%
"unauthenticated attacker on the same local ip subnet to write device configuration via specially crafted requests. ( cve - 2025 - 53847 ) - multiple relative path traversal vulnerabilities [ cwe - 23 ] in fortiweb may allow a local privileged attacker to execute unauthorized code…"

Summary

Multiple vulnerabilities have been discovered in Fortinet products, the most severe of which could allow for arbitrary code execution.

  • FortiAnalyzer is a unified security operations platform that consolidates telemetry across networks, endpoints, and cloud environments.
  • FortiClientEMS is a centralized management platform for deploying, configuring, monitoring, and enforcing security policies across numerous endpoints (computers) running the FortiClient agent.
  • FortiDDoS is an inline, purpose-built solution that protects organizations against disruptions caused by attacks that flood a target with packets and exhaust resources, causing the network, applications, or services to be unavailable to legitimate traffic.
  • FortiManager is a centralized management platform that lets you configure, monitor, and control multiple Fortinet security devices from a single interface.
  • FortiNAC-F is a zero-trust network access solution that provides users with enhanced visibility into the Internet of Things (IoT) devices on their enterprise networks.
  • FortiNDR is Fortinet's Network Detection and Response product.
  • FortiOS is the Fortinet’s proprietary Operation System which is utilized across multiple product lines.
  • FortiPAM provides privileged access management and control for elevated and privileged accounts, processes, and systems across the entire IT environment.
  • FortiProxy is a secure web gateway product from Fortinet that protects users from internet-borne attacks, enforces compliance, and improves network performance.
  • FortiSandbox is an advanced threat detection solution from Fortinet that uses sandboxing to analyze suspicious files and network traffic for advanced threats like zero-day malware and ransomware.
  • FortiSOAR is a security orchestration, automation, and response (SOAR) solution that aims to simplify security operations for organizations.
  • FortiSwitchManager is Fortinet's dedicated, on-premise platform for centrally managing FortiSwitch devices in large deployments.
  • FortiVoice is a unified communications solution that combines voice, chat, conferencing, and fax into a single, secure platform for businesses and schools.
  • FortiWeb is a web application firewall (WAF) that protects web applications and APIs from cyberattacks like SQL injection and cross-site scripting, while also helping to meet compliance requirements.

Successful exploitation of the most severe of these vulnerabilities could allow for arbitrary code execution in the context of the affected service account. Depending on the privileges associated with the service account an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Service accounts that are configured to have fewer user rights on the system could be less impacted than those who operate with administrative user rights.