How severe is CVE-2023-42788?

CVE-2023-42788 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-42788 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-42788?

CVE-2023-42788 primarily affects Fortinet Fortianalyzer. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-42788?

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

When was CVE-2023-42788 published?

CVE-2023-42788 was published on 2023-10-10 and last updated on 2026-06-17.

CVE-2023-42788

CVE-2023-42788 is a high-severity vulnerability in Fortinet Fortianalyzer with a CVSS 3.x base score of 7.8. 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-78.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Fortinet Fortianalyzer
Published: 2023-10-10
Last modified: 2026-06-17

Description

An improper neutralization of special elements used in an os command ('OS Command Injection') vulnerability [CWE-78] in FortiManager & FortiAnalyzer version 7.4.0, version 7.2.0 through 7.2.3, version 7.0.0 through 7.0.8, version 6.4.0 through 6.4.12 and version 6.2.0 through 6.2.11 may allow a local attacker with low privileges to execute unauthorized code via specifically crafted arguments to a CLI command

Frequently asked questions

What is CVE-2023-42788?: An improper neutralization of special elements used in an os command ('OS Command Injection') vulnerability [CWE-78] in FortiManager & FortiAnalyzer version 7.4.0, version 7.2.0 through 7.2.3, version 7.0.0 through 7.0.8, version 6.4.0 through 6.4.12 and version 6.2.0 through 6.2.11 may allow a local attacker with low privileges to execute unauthorized code via specifically crafted arguments to a CLI command
How severe is CVE-2023-42788?: CVE-2023-42788 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-42788 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-42788?: CVE-2023-42788 primarily affects Fortinet Fortianalyzer. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-42788?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-42788 published?: CVE-2023-42788 was published on 2023-10-10 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:a:fortinet:fortianalyzer:*:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortianalyzer:7.4.0:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimanager:*:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimanager:7.4.0:*:*:*:*:*:*:*

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