CVE-2018-13383
CISA KEVPublished January 10, 2022 · Updated April 3, 2026
high
Official Description+
A heap buffer overflow in Fortinet FortiOS and FortiProxy may cause the SSL VPN web service termination for logged in users.
Affected Products
| Vendor | Product |
|---|---|
| Fortinet | FortiOS and FortiProxy |
Patch Status
Patch by 2022-07-10
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-2018-13383.