How severe is CVE-2023-34990?

CVE-2023-34990 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-2023-34990 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 25% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-34990?

CVE-2023-34990 affects Fortinet Fortiwlm. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-34990?

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-2023-34990 have an EU (EUVD) identifier?

Yes. CVE-2023-34990 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-39028.

When was CVE-2023-34990 published?

CVE-2023-34990 was published on 2024-12-18 and last updated on 2026-06-17.

CVE-2023-34990

CVE-2023-34990 is a critical-severity vulnerability in Fortinet Fortiwlm with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 25% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-23.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 25% (98th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-39028
Weakness: CWE-23
Affected product: Fortinet Fortiwlm
Published: 2024-12-18
Last modified: 2026-06-17

Description

A relative path traversal in Fortinet FortiWLM version 8.6.0 through 8.6.5 and 8.5.0 through 8.5.4 allows attacker to execute unauthorized code or commands via specially crafted web requests.

Frequently asked questions

What is CVE-2023-34990?: A relative path traversal in Fortinet FortiWLM version 8.6.0 through 8.6.5 and 8.5.0 through 8.5.4 allows attacker to execute unauthorized code or commands via specially crafted web requests.
How severe is CVE-2023-34990?: CVE-2023-34990 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-2023-34990 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 25% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-34990?: CVE-2023-34990 affects Fortinet Fortiwlm. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-34990?: 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-2023-34990 have an EU (EUVD) identifier?: Yes. CVE-2023-34990 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-39028.
When was CVE-2023-34990 published?: CVE-2023-34990 was published on 2024-12-18 and last updated on 2026-06-17.

References

https://fortiguard.com/psirt/FG-IR-23-144

Affected products (1)

cpe:2.3:a:fortinet:fortiwlm:*:*:*:*:*:*:*:*

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