CVE-2019-5591

A Default Configuration vulnerability in FortiOS may allow an unauthenticated attacker on the same subnet to intercept sensitive information by impersonating the LDAP server.

Score

CVSS 3.1 6.5 Medium

Status

Analyzed - psirt@fortinet.com

Published

2020-08-14

Last modified

2026-08-15

Known exploited (CISA KEV)

since 2021-11-03, action due 2022-05-03: Apply updates per vendor instructions.

Weaknesses

CWE-306

Affected products

• Fortinet Fortios (Fortinet)
• Fortios (Fortinet)

References

• https://www.fortiguard.com/psirt/FG-IR-19-037
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-5591