CVE-2020-12818

Name: CVE-2020-12818
Creator: NVD / NIST
Published: 2020-09-24T15:15:13.237+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 0.90%

Last modified Jun 17, 2026

CVE-2020-12818 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. An insufficient logging vulnerability in FortiGate before 6.4.1 may allow the traffic from an unauthenticated attacker to Fortinet owned IP addresses to go unnoticed.. EPSS estimates a 0.90% chance of exploitation in the next 30 days.

Description

An insufficient logging vulnerability in FortiGate before 6.4.1 may allow the traffic from an unauthenticated attacker to Fortinet owned IP addresses to go unnoticed.

Metrics

CVSS 3.1

5.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS Probability

0.90%

55.1th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Fortinet	Fortios	< 6.4.1

References

https://fortiguard.com/advisory/FG-IR-20-033Vendor Advisory
https://www.fortiguard.com/psirt/FG-IR-20-033Vendor Advisory
https://fortiguard.com/advisory/FG-IR-20-033Vendor Advisory

Timeline

Published: Sep 24, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-12818?

An insufficient logging vulnerability in FortiGate before 6.4.1 may allow the traffic from an unauthenticated attacker to Fortinet owned IP addresses to go unnoticed.

How severe is CVE-2020-12818?

CVE-2020-12818 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.90% probability of exploitation in the next 30 days.

How do I fix CVE-2020-12818?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-12818?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST