How severe is CVE-2020-12818?

CVE-2020-12818 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2020-12818 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-12818?

CVE-2020-12818 affects Fortinet Fortios. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-12818?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-12818 published?

CVE-2020-12818 was published on 2020-09-24 and last updated on 2026-06-17.

CVE-2020-12818

CVE-2020-12818 is a medium-severity vulnerability in Fortinet Fortios with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Fortinet Fortios
Published: 2020-09-24
Last modified: 2026-06-17

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.

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 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2020-12818 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-12818?: CVE-2020-12818 affects Fortinet Fortios. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-12818?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-12818 published?: CVE-2020-12818 was published on 2020-09-24 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*

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