Known Vulnerabilities for FortiOS by Fortinet
Listed below are 10 of the newest known vulnerabilities associated with "FortiOS" by "Fortinet".
These CVEs are retrieved based on exact matches on listed software, hardware, and vendor information (CPE data) as well as a keyword search to ensure the newest vulnerabilities with no officially listed software information are still displayed.
Data on known vulnerable versions is also displayed based on information from known CPEs
Known Vulnerabilities
| CVE | Shortened Description | Severity | Publish Date | Last Modified |
|---|---|---|---|---|
| CVE-2026-126259 json | A missing authentication for critical function vulnerability in Fortinet FortiOS 8.0.0, FortiOS 7.6.0 through 7.6.7, FortiOS ... | Not Provided | 2026-11-11 | 2026-11-13 |
| CVE-2026-126258 json | A stack-based buffer overflow vulnerability in Fortinet FortiOS 8.0.0, FortiOS 7.6.7 may allow an unauthenticated attacker wi... | Not Provided | 2026-11-11 | 2026-11-12 |
| CVE-2026-126256 json | A out-of-bounds read vulnerability in Fortinet FortiOS 8.0.0 through 8.0.1, FortiOS 7.6.0 through 7.6.7, FortiOS 7.4.0 throug... | Not Provided | 2026-11-11 | 2026-11-13 |
| CVE-2026-126255 json | A path traversal: '../filedir' vulnerability in Fortinet FortiOS 8.0.0 through 8.0.1, FortiOS 7.6.0 through 7.6.7, FortiOS 7.... | Not Provided | 2026-11-11 | 2026-11-12 |
| CVE-2026-126254 json | A numeric truncation error vulnerability in Fortinet FortiOS 8.0.0 through 8.0.1, FortiOS 7.6.0 through 7.6.7, FortiOS 7.4.0 ... | Not Provided | 2026-11-11 | 2026-11-12 |
| CVE-2026-126253 json | A authentication bypass by primary weakness vulnerability in Fortinet FortiOS 8.0.0 through 8.0.1, FortiOS 7.6.0 through 7.6.... | Not Provided | 2026-11-11 | 2026-11-12 |
| CVE-2026-121530 json | A improper authentication vulnerability in Fortinet FortiOS 7.6.0 through 7.6.6 may allow a remote authenticated attacker to ... | Not Provided | 2026-11-10 | 2026-11-11 |
| CVE-2026-121528 json | A improper certificate validation vulnerability in Fortinet FortiOS 7.6.0 through 7.6.4, FortiOS 7.4.0 through 7.4.9, FortiOS... | Not Provided | 2026-11-11 | 2026-11-11 |
| CVE-2026-106175 json | A Double Free vulnerability [CWE-415] vulnerability in Fortinet FortiOS 7.6.0 through 7.6.8, FortiOS 7.4 all versions, FortiO... | Not Provided | 2026-10-13 | 2026-11-10 |
| CVE-2026-106174 json | A improper locking vulnerability in Fortinet FortiOS 8.0.0, FortiOS 7.6.4 through 7.6.6 may allow an unauthenticated attacker... | Not Provided | 2026-10-27 | 2026-11-10 |
Known Affected Configurations (CPE V2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Fortinet | Fortios | 6.4.1 | |||
| Operating System | Fortinet | Fortios | 6.4.0 | |||
| Operating System | Fortinet | Fortios | 6.2.4 | |||
| Operating System | Fortinet | Fortios | 6.2.3 | |||
| Operating System | Fortinet | Fortios | 6.2.2 | |||
| Operating System | Fortinet | Fortios | 6.2.1 | |||
| Operating System | Fortinet | Fortios | 6.2.0 | |||
| Operating System | Fortinet | Fortios | 6.0.9 | |||
| Operating System | Fortinet | Fortios | 6.0.8 | |||
| Operating System | Fortinet | Fortios | 6.0.7 | |||
| Operating System | Fortinet | Fortios | 6.0.6 | |||
| Operating System | Fortinet | Fortios | 6.0.5 | |||
| Operating System | Fortinet | Fortios | 6.0.4 | |||
| Operating System | Fortinet | Fortios | 6.0.3 | |||
| Operating System | Fortinet | Fortios | 6.0.2 | |||
| Operating System | Fortinet | Fortios | 6.0.10 | |||
| Operating System | Fortinet | Fortios | 6.0.1 | |||
| Operating System | Fortinet | Fortios | 6.0.0 | |||
| Operating System | Fortinet | Fortios | 5.6.9 | |||
| Operating System | Fortinet | Fortios | 5.6.8 |