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Fortinet

Vendor security scorecard – 837 CVEs in the selected period

Period: 30d 90d 6m 1y All
Risk 3547
837
CVEs
91
Critical
275
High
20
KEV
64
PoC
335
Unpatched C/H
6.6%
Patch Rate
2.9%
Avg EPSS

Severity Breakdown

CRITICAL
91
HIGH
275
MEDIUM
420
LOW
51

Monthly CVE Trend

Top Risky CVEs

CVE Summary Severity CVSS EPSS Priority Signals
CVE-2022-40684 An authentication bypass using an alternate path or channel [CWE-288] in Fortinet FortiOS version 7.2.0 through 7.2.1 and 7.0.0 through 7.0.6, FortiProxy version 7.2.0 and version 7.0.0 through 7.0.6. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available. CRITICAL 9.8 100.0% 234
KEV PoC No patch
CVE-2025-64446 Fortinet FortiWeb contains a relative path traversal allowing unauthenticated attackers to execute administrative commands through crafted HTTP/HTTPS requests. CRITICAL 9.8 88.2% 222
KEV PoC No patch
CVE-2024-55591 FortiOS and FortiProxy contain an authentication bypass via the Node.js websocket module allowing unauthenticated remote attackers to gain super-admin privileges through crafted requests. CRITICAL 9.8 94.2% 213
KEV PoC No patch
CVE-2024-21762 A out-of-bounds write in Fortinet FortiOS versions 7.4.0 through 7.4.2, 7.2.0 through 7.2.6, 7.0.0 through 7.0.13, 6.4.0 through 6.4.14, 6.2.0 through 6.2.15, 6.0.0 through 6.0.17, FortiProxy. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available. CRITICAL 9.8 83.4% 202
KEV PoC No patch
CVE-2023-27997 A heap-based buffer overflow vulnerability [CWE-122] in FortiOS version 7.2.4 and below, version 7.0.11 and below, version 6.4.12 and below, version 6.0.16 and below and FortiProxy version 7.2.3 and. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available. CRITICAL 9.8 85.7% 185
KEV No patch
CVE-2025-58034 Fortinet FortiWeb contains an authenticated OS command injection allowing privilege escalation to execute unauthorized commands on the web application firewall. HIGH 7.2 50.7% 172
KEV PoC No patch
CVE-2020-12812 FortiOS SSL-VPN contains an improper authentication vulnerability that allows users to bypass two-factor authentication by changing the case of their username, undermining MFA security controls. CRITICAL 9.8 48.5% 158
KEV No patch
CVE-2016-1909 Fortinet FortiAnalyzer before 5.0.12 and 5.2.x before 5.2.5; FortiSwitch 3.3.x before 3.3.3; FortiCache 3.0.x before 3.0.8; and FortiOS 4.1.x before 4.1.11, 4.2.x before 4.2.16, 4.3.x before 4.3.17. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and EPSS exploitation probability 78.6%. CRITICAL 9.8 78.6% 148
PoC No patch
CVE-2023-34992 A improper neutralization of special elements used in an os command ('os command injection') vulnerability in Fortinet allows attacker to execute unauthorized code or commands via crafted API. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available. CRITICAL 9.8 65.5% 135
PoC No patch
CVE-2016-6909 Buffer overflow in the Cookie parser in Fortinet FortiOS 4.x before 4.1.11, 4.2.x before 4.2.13, and 4.3.x before 4.3.9 and FortiSwitch before 3.4.3 allows remote attackers to execute arbitrary code. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and EPSS exploitation probability 63.4%. CRITICAL 9.8 63.4% 132
PoC No patch
CVE-2026-39808 OS command injection in Fortinet FortiSandbox 4.4.0-4.4.8 and FortiSandbox PaaS versions 21.3-23.4 enables remote unauthenticated attackers to execute arbitrary system commands with complete system compromise. CVSS 9.8 (network, low complexity, no privileges) but EPSS 0.29% (53rd percentile) suggests limited real-world exploitation observed despite maximum severity score. No active exploitation confirmed (not in CISA KEV). SSVC framework classifies as automatable with total technical impact but no known exploitation. Fortinet PSIRT advisory FG-IR-26-100 available but description incomplete (missing attack vector specifics). CRITICAL 9.8 0.3% 124
KEV PoC No patch
CVE-2026-21643 A product has a SQL injection vulnerability enabling unauthenticated database compromise through improperly neutralized SQL commands. CRITICAL 9.8 0.0% 124
KEV PoC No patch
CVE-2026-35616 Remote code execution in Fortinet FortiClientEMS versions 7.4.5 through 7.4.6 allows unauthenticated attackers to execute arbitrary code via crafted network requests. The vulnerability stems from improper access control (CWE-284) and requires no user interaction or privileges (CVSS PR:N). With a CVSS score of 9.1 (Critical) and low attack complexity, this represents a severe exposure for organizations using affected FortiClientEMS versions. The CVSS temporal metrics indicate functional exploit code exists (E:F) with an official fix available (RL:O), making this a high-priority patching target despite no confirmed active exploitation (not present in CISA KEV). CRITICAL 9.8 0.0% 124
KEV PoC No patch
CVE-2026-25089 Unauthenticated OS command injection in Fortinet FortiSandbox (on-premise, Cloud, and PaaS variants) allows remote attackers to execute arbitrary operating system commands by sending specifically crafted HTTP requests to the management interface. The flaw carries a CVSS 9.8 rating with network-reachable, no-authentication, no-user-interaction characteristics, and no public exploit identified at time of analysis. Because FortiSandbox is a security-analysis appliance handling untrusted samples, compromise undermines the integrity of malware verdicts and downstream detections. CRITICAL 9.8 2.0% 121
KEV PoC No patch
CVE-2025-25249 Remote code execution in Fortinet FortiOS (6.4 through 7.6.3) and FortiSwitchManager (7.0.x/7.2.x) lets an attacker run unauthorized code or commands by sending specially crafted packets to an affected device. The flaw is a heap-based buffer overflow requiring no authentication or user interaction, and it is confirmed actively exploited (CISA KEV) with publicly available exploit code, reportedly tied to a 'PivotC2' FortiGate RAT. Despite the KEV listing, EPSS is only 0.01% (2nd percentile), indicating targeted rather than mass-scanning exploitation to date. CRITICAL 9.8 0.0% 119
KEV PoC No patch

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