CVE Watch2 de out. de 2026

CVE-2020-12812

Fortinet FortiOS SSL VPN Improper Authentication Vulnerability

CVSS

9.8

Crítica

EPSS

45.4%

p99

KEV

SIM

3 de nov. de 2021

Exploit Today

0-100

Publicado: 24 de jul. de 2020 · Última mod.: 2 de out. de 2026 · CWE-178 · CWE-287

EPSS · 30d

45.4%EPSS · 30 dias45.4%

2026-10-082026-11-05

Ficha do catálogo KEV

Produto

Fortinet / FortiOS

Vulnerabilidade

Fortinet FortiOS SSL VPN Improper Authentication Vulnerability

Adicionado ao KEV

3 de nov. de 2021

Corrigir até

3 de mai. de 2022

Uso conhecido em ransomware

Sim

Descrição resumida

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.

Ação necessária

Apply updates per vendor instructions.

Notas

https://nvd.nist.gov/vuln/detail/CVE-2020-12812

Descrição técnica

An improper authentication vulnerability in SSL VPN in FortiOS 6.4.0, 6.2.0 to 6.2.3, 6.0.9 and below may result in a user being able to log in successfully without being prompted for the second factor of authentication (FortiToken) if they changed the case of their username.

Referências oficiais

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