How severe is CVE-2023-34992?

CVE-2023-34992 has a CVSS 3.x base score of 10.0, 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-2023-34992 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 66% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-34992?

CVE-2023-34992 primarily affects Fortinet Fortisiem. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-34992?

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.

When was CVE-2023-34992 published?

CVE-2023-34992 was published on 2023-10-10 and last updated on 2026-06-17.

CVE-2023-34992

CVE-2023-34992 is a critical-severity vulnerability in Fortinet Fortisiem with a CVSS 3.x base score of 10.0. Its EPSS exploit-prediction score of 66% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-78.

Key facts

Severity: Critical (CVSS 3.x base score 10.0)
EPSS exploit prediction: 66% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Fortinet Fortisiem
Published: 2023-10-10
Last modified: 2026-06-17

Description

A improper neutralization of special elements used in an os command ('os command injection') vulnerability in Fortinet allows attacker to execute unauthorized code or commands via crafted API requests.

Frequently asked questions

What is CVE-2023-34992?: A improper neutralization of special elements used in an os command ('os command injection') vulnerability in Fortinet allows attacker to execute unauthorized code or commands via crafted API requests.
How severe is CVE-2023-34992?: CVE-2023-34992 has a CVSS 3.x base score of 10.0, 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-2023-34992 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 66% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-34992?: CVE-2023-34992 primarily affects Fortinet Fortisiem. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-34992?: 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.
When was CVE-2023-34992 published?: CVE-2023-34992 was published on 2023-10-10 and last updated on 2026-06-17.

References

https://fortiguard.com/psirt/FG-IR-23-130

Affected products (7)

cpe:2.3:a:fortinet:fortisiem:*:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortisiem:6.4.0:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortisiem:6.4.1:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortisiem:6.4.2:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortisiem:6.5.0:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortisiem:6.5.1:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortisiem:7.0.0:*:*:*:*:*:*:*

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