How severe is CVE-2023-45582?

CVE-2023-45582 has a CVSS 3.x base score of 5.6, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2023-45582 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-45582?

CVE-2023-45582 primarily affects Fortinet Fortimail. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-45582?

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

When was CVE-2023-45582 published?

CVE-2023-45582 was published on 2023-11-14 and last updated on 2026-06-17.

CVE-2023-45582

CVE-2023-45582 is a medium-severity vulnerability in Fortinet Fortimail with a CVSS 3.x base score of 5.6. 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-307.

Key facts

Severity: Medium (CVSS 3.x base score 5.6)
EPSS exploit prediction: 1% (41st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-307
Affected product: Fortinet Fortimail
Published: 2023-11-14
Last modified: 2026-06-17

Description

An improper restriction of excessive authentication attempts vulnerability [CWE-307] in FortiMail webmail version 7.2.0 through 7.2.4, 7.0.0 through 7.0.6 and before 6.4.8 may allow an unauthenticated attacker to perform a brute force attack on the affected endpoints via repeated login attempts.

Frequently asked questions

What is CVE-2023-45582?: An improper restriction of excessive authentication attempts vulnerability [CWE-307] in FortiMail webmail version 7.2.0 through 7.2.4, 7.0.0 through 7.0.6 and before 6.4.8 may allow an unauthenticated attacker to perform a brute force attack on the affected endpoints via repeated login attempts.
How severe is CVE-2023-45582?: CVE-2023-45582 has a CVSS 3.x base score of 5.6, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2023-45582 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-45582?: CVE-2023-45582 primarily affects Fortinet Fortimail. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-45582?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-45582 published?: CVE-2023-45582 was published on 2023-11-14 and last updated on 2026-06-17.

References

https://fortiguard.com/psirt/FG-IR-23-287

Affected products (2)

cpe:2.3:a:fortinet:fortimail:*:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimail:7.4.0:*:*:*:*:*:*:*

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