Live › vulnerability › CVE-2018-13383
Go to dashboardA heap buffer overflow in Fortinet FortiOS and FortiProxy's SSL VPN web service can crash the service for logged-in users. The sources tie it to ransomware use and in-the-wild exploitation, but do not confirm code execution.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 19:11 UTC, 3h before NVD. All times on this page are UTC.
Apply updates per vendor instructions.
| Product | Ecosystem | Affected | Fixed in |
|---|---|---|---|
| Fortinet FortiOS and FortiProxy | vendor | – | – |
Unknown from the sources. In the analyst’s queue.
Apply the Fortinet update for FortiOS and FortiProxy per vendor instructions; the sources do not name the fixed version.
Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
A heap buffer overflow in Fortinet FortiOS 6.0.0 through 6.0.4, 5.6.0 through 5.6.10, 5.4.0 through 5.4.12, 5.2.14 and earlier and FortiProxy 2.0.0, 1.2.8 and earlier in the SSL VPN web portal may cause the SSL VPN web service termination for logged in users due to a failure to properly handle javascript href data when proxying webpages.
This page as .md · .json · in your agent: get_signal("CVE-2018-13383")
CISA KEV catalog, Creative Commons 0 · EPSS scores by FIRST, used with attribution · NVD data is provided by NIST and is public domain. Posts quoted belong to their authors.