CVE-2022-42475
CISA KEVPublished December 13, 2022 · Updated April 3, 2026
high
Official Description+
Multiple versions of Fortinet FortiOS SSL-VPN contain a heap-based buffer overflow vulnerability which can allow an unauthenticated, remote attacker to execute arbitrary code or commands via specifically crafted requests.
Affected Products
| Vendor | Product |
|---|---|
| Fortinet | FortiOS |
Patch Status
Patch by 2023-01-03
Recommended Actions
- Check if your systems use any of the affected products listed above.
- Apply vendor patches immediately if available.
- This vulnerability is in CISA's Known Exploited Vulnerabilities catalog — prioritize remediation.
- Monitor vendor advisories for updates and additional mitigations.
- Review logs for indicators of compromise related to CVE-2022-42475.