How severe is CVE-2023-37936?

CVE-2023-37936 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-37936 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-37936?

CVE-2023-37936 primarily affects Fortinet Fortiswitch. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-37936?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2023-37936 have an EU (EUVD) identifier?

Yes. CVE-2023-37936 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-41789.

When was CVE-2023-37936 published?

CVE-2023-37936 was published on 2025-01-14 and last updated on 2026-06-17.

CVE-2023-37936

CVE-2023-37936 is a critical-severity vulnerability in Fortinet Fortiswitch with a CVSS 3.x base score of 9.8. 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-798.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-41789
Weakness: CWE-798
Affected product: Fortinet Fortiswitch
Published: 2025-01-14
Last modified: 2026-06-17

Description

A use of hard-coded cryptographic key in Fortinet FortiSwitch version 7.4.0 and 7.2.0 through 7.2.5 and 7.0.0 through 7.0.7 and 6.4.0 through 6.4.13 and 6.2.0 through 6.2.7 and 6.0.0 through 6.0.7 allows attacker to execute unauthorized code or commands via crafted requests.

Frequently asked questions

What is CVE-2023-37936?: A use of hard-coded cryptographic key in Fortinet FortiSwitch version 7.4.0 and 7.2.0 through 7.2.5 and 7.0.0 through 7.0.7 and 6.4.0 through 6.4.13 and 6.2.0 through 6.2.7 and 6.0.0 through 6.0.7 allows attacker to execute unauthorized code or commands via crafted requests.
How severe is CVE-2023-37936?: CVE-2023-37936 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-37936 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-37936?: CVE-2023-37936 primarily affects Fortinet Fortiswitch. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-37936?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2023-37936 have an EU (EUVD) identifier?: Yes. CVE-2023-37936 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-41789.
When was CVE-2023-37936 published?: CVE-2023-37936 was published on 2025-01-14 and last updated on 2026-06-17.

References

https://fortiguard.com/psirt/FG-IR-23-260

Affected products (2)

cpe:2.3:o:fortinet:fortiswitch:*:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortiswitch:7.4.0:*:*:*:*:*:*:*

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