A critical **OS command injection vulnerability (CVE-2025-58034, CVSS 6.7)** was discovered in **Fortinet’s FortiWeb security platform**, with confirmed active exploitation in real-world environments. The flaw (CWE-78) allows **authenticated attackers with elevated privileges** to execute **arbitrary code** via crafted HTTP requests or CLI commands, leading to **remote code execution (RCE)**. Successful exploitation enables full system compromise, **sensitive data exfiltration**, and **lateral movement** within enterprise networks. While the CVSS score is classified as *medium*, the **active exploitation and potential for complete system takeover** elevate its risk to a **high-priority remediation issue**.Fortinet released patches for affected versions (FortiWeb 8.0.2+, 7.6.6+, 7.4.11+, 7.2.12+, 7.0.12+), urging immediate upgrades. Organizations unable to patch are advised to enforce **strict access controls**, monitor logs for suspicious activity, and verify system integrity. The vulnerability, disclosed on **November 18, 2025**, poses a severe threat to enterprises relying on FortiWeb for web application security, risking **operational disruption, data breaches, and unauthorized network access** if left unaddressed.
Source: https://cyberpress.org/fortiweb-0-day-code-execution-vulnerability/
Fortinet cybersecurity rating report: https://www.rankiteo.com/company/fortinet
"id": "FOR4002340112025",
"linkid": "fortinet",
"type": "Vulnerability",
"date": "11/2025",
"severity": "60",
"impact": "",
"explanation": "Attack with significant impact with internal employee data leaks: - Attack which causes data leak of employee of the company - Attack in which company lost current and former employees data through phishing scam"{'affected_entities': [{'industry': 'Cybersecurity',
'location': 'Global',
'name': 'Fortinet',
'type': 'Corporation'}],
'attack_vector': 'Network (Authenticated, Elevated Privileges Required)',
'customer_advisories': 'Fortinet has released comprehensive documentation, '
'including CVRF and CSAF files, for customer '
'integration into security tools.',
'data_breach': {'data_exfiltration': 'Potential (if vulnerability is '
'exploited)'},
'date_publicly_disclosed': '2025-11-18',
'description': 'A critical OS command injection vulnerability '
'(CVE-2025-58034) has been discovered in Fortinet’s FortiWeb '
'security platform, allowing authenticated attackers with '
'elevated privileges to execute arbitrary code via crafted '
'HTTP requests or CLI commands. Active exploitation has been '
'confirmed in real-world environments. The flaw stems from '
'improper neutralization of special elements in OS commands '
'(CWE-78), enabling remote code execution (RCE), system '
'compromise, data exfiltration, or lateral movement within '
'networks. Fortinet disclosed the vulnerability on November '
'18, 2025, with advisory reference FG-IR-25-513. Immediate '
'patching to versions 8.0.2+, 7.6.6+, 7.4.11+, 7.2.12+, or '
'7.0.12+ is required. Organizations unable to patch should '
'enforce stricter access controls and monitor logs for '
'suspicious activity.',
'impact': {'brand_reputation_impact': 'High (due to active exploitation of a '
'widely used security platform)',
'operational_impact': 'Potential for complete system compromise, '
'lateral movement, or data exfiltration if '
'exploited',
'systems_affected': ['FortiWeb deployments running unpatched '
'versions (pre-8.0.2, 7.6.6, 7.4.11, 7.2.12, '
'7.0.12)']},
'investigation_status': 'Ongoing (active exploitation confirmed; '
'organizations urged to check for compromise)',
'lessons_learned': ['Critical vulnerabilities in security products can '
'undermine enterprise defenses if left unpatched.',
'Active exploitation elevates remediation priority '
'regardless of CVSS score.',
'Access controls and logging are essential mitigations '
'when patching is delayed.'],
'post_incident_analysis': {'corrective_actions': ['Code-level fixes in '
'patched versions to '
'prevent command injection.',
'Enhanced input validation '
'for authenticated '
'commands.'],
'root_causes': 'Improper neutralization of special '
'elements in OS commands (CWE-78) '
'within FortiWeb’s HTTP request/CLI '
'command processing.'},
'recommendations': ['Immediately inventory all FortiWeb deployments and '
'verify versions.',
'Prioritize patching in a staged rollout (non-production '
'first).',
'Enforce least-privilege access and multi-factor '
'authentication (MFA) for FortiWeb management interfaces.',
'Deploy network segmentation to limit lateral movement '
'risks.',
'Integrate Fortinet’s CVRF/CSAF advisories into '
'vulnerability management tools for automated tracking.'],
'references': [{'source': 'Fortinet Advisory (FG-IR-25-513)'},
{'source': 'Trend Micro Research (Jason McFadyen)'}],
'response': {'containment_measures': ['Upgrade to patched versions (8.0.2+, '
'7.6.6+, 7.4.11+, 7.2.12+, 7.0.12+)',
'Restrict authenticated access to '
'FortiWeb systems',
'Monitor logs for suspicious command '
'execution patterns'],
'enhanced_monitoring': 'Recommended for unpatched systems',
'remediation_measures': ['Patch management (priority testing in '
'non-production environments before '
'deployment)',
'Review historical logs for '
'exploitation attempts',
'Verify system integrity on affected '
'deployments']},
'title': 'Critical OS Command Injection Vulnerability in Fortinet’s FortiWeb '
'(CVE-2025-58034)',
'type': 'Vulnerability Exploitation',
'vulnerability_exploited': {'advisory_reference': 'FG-IR-25-513',
'cve_id': 'CVE-2025-58034',
'cvss_score': 6.7,
'cvss_severity': 'Medium (High Priority Due to '
'Active Exploitation)',
'cwe_id': 'CWE-78',
'discoverer': 'Jason McFadyen (Trend Micro)'}}