Live › vulnerability › CVE-2020-12812
Go to dashboardFortinet FortiOS SSL VPN can let a user log in without the second factor (FortiToken) when the username's letter case is changed. An attacker with a valid username and password gets VPN access without the one-time code.
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 | vendor | – | – |
Unknown from the sources. In the analyst’s queue.
Apply the FortiOS update per Fortinet's 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.
Fortinet FortiOS SSL VPN contains an improper authentication vulnerability that may allow a user to login successfully without being prompted for the second factor of authentication (FortiToken) if they change the case in their username.
CISA required action: Apply updates per vendor instructions.
This page as .md · .json · in your agent: get_signal("CVE-2020-12812")
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.