Full Report
Fortinet security advisory (AV26-898)
Analysis Summary
# Vulnerability: Multiple Vulnerabilities in Fortinet Products (September 2026)
## CVE Details
*Note: The provided advisory (AV26-898) serves as a consolidated notification. Individual CVE IDs are typically detailed in the specific Fortiguard PSIRT links provided in the references.*
- **CVE ID:** Multiple (Refer to Fortinet PSIRT)
- **CVSS Score:** Varies by product (Range: Medium to Critical)
- **CWE:** Varies (Includes potential Memory Corruption, Input Validation, and Logic flaws)
## Affected Systems
- **FortiOS 7.6:** Versions 7.6.1 through 7.6.6
- **FortiProxy 7.6:** Versions 7.6.2 through 7.6.6
- **FortiPAM Chrome Extension:** All versions in branches 8.0 and 7.4
- **FortiSandbox:**
- 5.0.0 through 5.0.5
- 4.4.0 through 4.4.8
- **FortiSandbox Cloud/PaaS:** Versions 5.0.4 through 5.0.5
- **FortiMonitorOnSight 7.2:**
- 7.2.4 through 7.2.7
- 7.2.0 through 7.2.2
## Vulnerability Description
This advisory covers a suite of updates addressing various security flaws across Fortinet's network security and monitoring ecosystem. Technical details typically involve vulnerabilities in the web management interfaces (FortiOS/FortiProxy), potential privilege escalation or data leakage in browser extensions (FortiPAM), and sandbox escape or remote code execution risks in analysis engines (FortiSandbox).
## Exploitation
- **Status:** Consult specific PSIRT for active exploitation status (Typically "Not exploited" at time of release unless otherwise noted).
- **Complexity:** Low to Medium
- **Attack Vector:** Network (Primary vector for OS/Sandbox) | Local (FortiPAM Extension)
## Impact
- **Confidentiality:** High (Potential data disclosure)
- **Integrity:** High (Potential system modification)
- **Availability:** High (Potential Denial of Service)
## Remediation
### Patches
Users are advised to upgrade to the following versions or higher:
- **FortiOS:** Upgrade to v7.6.7 or follow vendor-specific migration paths.
- **FortiProxy:** Upgrade to v7.6.7.
- **FortiPAM Chrome Extension:** Check Chrome Web Store for latest patched versions.
- **FortiSandbox:** Upgrade to v5.0.6 or v4.4.9.
- **FortiMonitorOnSight:** Upgrade to v7.2.8 or the latest stable release.
### Workarounds
- **Management Interface Access:** Restrict access to administrative interfaces using Local In Policies or Trusted Hosts.
- **Service Disablement:** Disable unused services (e.g., specific Sandbox features) if an immediate patch cannot be applied.
## Detection
- **IOCs:** Monitor system logs for unusual administrative logins or crashes in the `httpsd` process.
- **Scanning:** Utilize FortiAnalyzer or external vulnerability scanners to identify out-of-date firmware versions.
## References
- **Vendor Advisory:** hxxps[://]www[.]fortiguard[.]com/psirt
- **Cyber Centre Bulletin:** hxxps[://]www[.]cyber[.]gc[.]ca/en/alerts-advisories/fortinet-security-advisory-av26-898