How severe is CVE-2020-15933?

CVE-2020-15933 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-2020-15933 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-15933?

CVE-2020-15933 primarily affects Fortinet Fortimail. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-15933?

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

When was CVE-2020-15933 published?

CVE-2020-15933 was published on 2022-01-05 and last updated on 2026-06-17.

CVE-2020-15933

CVE-2020-15933 is a medium-severity vulnerability in Fortinet Fortimail 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. The underlying weakness is classified as CWE-200.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Fortinet Fortimail
Published: 2022-01-05
Last modified: 2026-06-17

Description

A exposure of sensitive information to an unauthorized actor in Fortinet FortiMail versions 6.0.9 and below, FortiMail versions 6.2.4 and below FortiMail versions 6.4.1 and 6.4.0 allows attacker to obtain potentially sensitive software-version information via client-side resources inspection.

Frequently asked questions

What is CVE-2020-15933?: A exposure of sensitive information to an unauthorized actor in Fortinet FortiMail versions 6.0.9 and below, FortiMail versions 6.2.4 and below FortiMail versions 6.4.1 and 6.4.0 allows attacker to obtain potentially sensitive software-version information via client-side resources inspection.
How severe is CVE-2020-15933?: CVE-2020-15933 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-2020-15933 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-15933?: CVE-2020-15933 primarily affects Fortinet Fortimail. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-15933?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-15933 published?: CVE-2020-15933 was published on 2022-01-05 and last updated on 2026-06-17.

References

https://fortiguard.com/psirt/FG-IR-20-105

Affected products (8)

cpe:2.3:a:fortinet:fortimail:*:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimail:6.2.0:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimail:6.2.1:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimail:6.2.2:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimail:6.2.3:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimail:6.2.4:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimail:6.4.0:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimail:6.4.1:*:*:*:*:*:*:*

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