Fortinet vulnerabilities
- Fortinet has 512 CVE records published between 28 Oct 2023 and 28 Oct 2026, ranking #32 of 420 vendors on this site by that count.
- Of the 512 with a CVSS score, 149 (29.1%) are rated critical or high; 0 (0% of all) have no CVSS score.
- 32 vulnerabilities attributed to Fortinet are listed in CISA's Known Exploited Vulnerabilities (KEV) catalog; the most recent, CVE-2025-61624, was added on 16 Oct 2026.
- 14 of them (43.8%) are marked as known to be used in ransomware campaigns.
- For the 32 KEV entries with a published CVE record, the median time from CVE publication to KEV listing is 10 days.
Records are attributed to Fortinet from the vendor named in the source records. About the data.
CVE records per year
Show data as a table
| Year | CVE records |
|---|---|
| 2017 | 34 |
| 2018 | 17 |
| 2019 | 33 |
| 2020 | 31 |
| 2021 | 123 |
| 2022 | 100 |
| 2023 | 198 |
| 2024 | 121 |
| 2025 | 237 |
| 2026 | 124 |
2026 is partial (through 28 Oct 2026), shown in a lighter bar.
| Year | Records | Critical | High | Critical or high | Not scored |
|---|---|---|---|---|---|
| 2026 | 124 | 15 | 19 | 27.4% | 0% |
| 2025 | 237 | 13 | 46 | 24.9% | 0% |
| 2024 | 121 | 10 | 33 | 35.5% | 0% |
| 2023 | 198 | 14 | 68 | 41.4% | 0% |
| 2022 | 100 | 7 | 35 | 42% | 0% |
| 2021 | 123 | 3 | 42 | 37.8% | 3.3% |
| 2020 | 31 | 0 | 3 | 37.5% | 74.2% |
| 2019 | 33 | 2 | 2 | 44.4% | 72.7% |
| 2018 | 17 | 0 | 0 | — | 100% |
| 2017 | 34 | 0 | 0 | — | 100% |
Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.
Exploited vulnerabilities in CISA's KEV catalog
| CVE | Product | Name | Added | Ransomware |
|---|---|---|---|---|
| CVE-2025-61624 | Multiple Products | Fortinet Multiple Products Path Traversal Vulnerability | 2026-10-16 | Unknown |
| CVE-2026-104286 | FortiMail | Fortinet FortiMail Path Traversal Vulnerability | 2026-10-01 | Unknown |
| CVE-2025-25249 | Multiple Products | Fortinet Multiple Products Heap-based Buffer Overflow Vulnerability | 2026-09-09 | Unknown |
| CVE-2025-68686 | FortiOS | Fortinet FortiOS Exposure of Sensitive Information to an Unauthorized Actor Vulnerability | 2026-07-27 | Unknown |
| CVE-2026-25089 | FortiSandbox | Fortinet FortiSandbox OS Command Injection Vulnerability | 2026-07-16 | Unknown |
| CVE-2026-39808 | FortiSandbox | Fortinet FortiSandbox OS Command Injection Vulnerability | 2026-07-16 | Unknown |
| CVE-2026-21643 | FortiClient EMS | Fortinet FortiClient EMS SQL Injection Vulnerability | 2026-04-13 | Unknown |
| CVE-2026-35616 | FortiClient EMS | Fortinet FortiClient EMS Improper Access Control Vulnerability | 2026-04-06 | Unknown |
| CVE-2026-24858 | Multiple Products | Fortinet Multiple Products Authentication Bypass Using an Alternate Path or Channel Vulnerability | 2026-01-27 | Unknown |
| CVE-2025-59718 | Multiple Products | Fortinet Multiple Products Improper Verification of Cryptographic Signature Vulnerability | 2025-12-16 | Unknown |
| CVE-2025-58034 | FortiWeb | Fortinet FortiWeb OS Command Injection Vulnerability | 2025-11-18 | Unknown |
| CVE-2025-64446 | FortiWeb | Fortinet FortiWeb Path Traversal Vulnerability | 2025-11-14 | Unknown |
| CVE-2025-25257 | FortiWeb | Fortinet FortiWeb SQL Injection Vulnerability | 2025-07-18 | Unknown |
| CVE-2019-6693 | FortiOS | Fortinet FortiOS Use of Hard-Coded Credentials Vulnerability | 2025-06-25 | Known |
| CVE-2025-32756 | Multiple Products | Fortinet Multiple Products Stack-Based Buffer Overflow Vulnerability | 2025-05-14 | Unknown |
| CVE-2025-24472 | FortiOS and FortiProxy | Fortinet FortiOS and FortiProxy Authentication Bypass Vulnerability | 2025-03-18 | Known |
| CVE-2024-55591 | FortiOS and FortiProxy | Fortinet FortiOS and FortiProxy Authentication Bypass Vulnerability | 2025-01-14 | Known |
| CVE-2024-47575 | FortiManager | Fortinet FortiManager Missing Authentication Vulnerability | 2024-10-23 | Unknown |
| CVE-2024-23113 | Multiple Products | Fortinet Multiple Products Format String Vulnerability | 2024-10-09 | Unknown |
| CVE-2023-48788 | FortiClient EMS | Fortinet FortiClient EMS SQL Injection Vulnerability | 2024-03-25 | Known |
| CVE-2024-21762 | FortiOS | Fortinet FortiOS Out-of-Bound Write Vulnerability | 2024-02-09 | Known |
| CVE-2023-27997 | FortiOS and FortiProxy SSL-VPN | Fortinet FortiOS and FortiProxy SSL-VPN Heap-Based Buffer Overflow Vulnerability | 2023-06-13 | Known |
| CVE-2022-41328 | FortiOS | Fortinet FortiOS Path Traversal Vulnerability | 2023-03-14 | Unknown |
| CVE-2022-42475 | FortiOS | Fortinet FortiOS Heap-Based Buffer Overflow Vulnerability | 2022-12-13 | Known |
| CVE-2022-40684 | Multiple Products | Fortinet Multiple Products Authentication Bypass Vulnerability | 2022-10-11 | Known |
| CVE-2018-13374 | FortiOS and FortiADC | Fortinet FortiOS and FortiADC Improper Access Control Vulnerability | 2022-09-08 | Known |
| CVE-2018-13382 | FortiOS and FortiProxy | Fortinet FortiOS and FortiProxy Improper Authorization | 2022-01-10 | Known |
| CVE-2018-13383 | FortiOS and FortiProxy | Fortinet FortiOS and FortiProxy Out-of-bounds Write | 2022-01-10 | Known |
| CVE-2021-44168 | FortiOS | Fortinet FortiOS Arbitrary File Download | 2021-12-10 | Unknown |
| CVE-2018-13379 | FortiOS | Fortinet FortiOS SSL VPN Path Traversal Vulnerability | 2021-11-03 | Known |
| CVE-2019-5591 | FortiOS | Fortinet FortiOS Default Configuration Vulnerability | 2021-11-03 | Known |
| CVE-2020-12812 | FortiOS | Fortinet FortiOS SSL VPN Improper Authentication Vulnerability | 2021-11-03 | Known |
Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.27, as of 27 Oct 2026. About the data.
Highest exploit-prediction scores (EPSS)
EPSS estimates the probability that a vulnerability is exploited in the next 30 days. These are the 10 highest-scoring Fortinet records today.
| CVE | EPSS | Percentile | Severity | In KEV |
|---|---|---|---|---|
| CVE-2018-13379 | 100% | 100% | Critical | Yes |
| CVE-2022-40684 | 100% | 100% | Critical | Yes |
| CVE-2025-25257 | 99.9% | 100% | Critical | Yes |
| CVE-2022-39952 | 99.8% | 100% | Critical | No |
| CVE-2022-42475 | 99.5% | 99.9% | Critical | Yes |
| CVE-2023-48788 | 98.4% | 99.9% | Critical | Yes |
| CVE-2026-21643 | 97.7% | 99.9% | Critical | Yes |
| CVE-2024-47575 | 94.8% | 99.9% | Critical | Yes |
| CVE-2024-55591 | 94.4% | 99.9% | Critical | Yes |
| CVE-2026-35616 | 94% | 99.8% | Critical | Yes |
Source: FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026; CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.27, as of 27 Oct 2026. About the data.