How severe is CVE-2026-39815?

CVE-2026-39815 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-39815 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-39815?

CVE-2026-39815 affects Fortinet Fortiddos-f. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-39815?

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.

Does CVE-2026-39815 have an EU (EUVD) identifier?

Yes. CVE-2026-39815 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-22348.

When was CVE-2026-39815 published?

CVE-2026-39815 was published on 2026-04-14 and last updated on 2026-06-17.

CVE-2026-39815

CVE-2026-39815 is a high-severity vulnerability in Fortinet Fortiddos-f with a CVSS 3.x base score of 8.8. 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-89.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 0% (28th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-22348
Weakness: CWE-89
Affected product: Fortinet Fortiddos-f
Published: 2026-04-14
Last modified: 2026-06-17

Description

A improper neutralization of special elements used in an sql command ('sql injection') vulnerability in Fortinet FortiDDoS-F 7.2.1 through 7.2.2 may allow attacker to execute unauthorized code or commands via sending crafted HTTP requests

Frequently asked questions

What is CVE-2026-39815?: A improper neutralization of special elements used in an sql command ('sql injection') vulnerability in Fortinet FortiDDoS-F 7.2.1 through 7.2.2 may allow attacker to execute unauthorized code or commands via sending crafted HTTP requests
How severe is CVE-2026-39815?: CVE-2026-39815 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-39815 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-39815?: CVE-2026-39815 affects Fortinet Fortiddos-f. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-39815?: 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.
Does CVE-2026-39815 have an EU (EUVD) identifier?: Yes. CVE-2026-39815 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-22348.
When was CVE-2026-39815 published?: CVE-2026-39815 was published on 2026-04-14 and last updated on 2026-06-17.

References

https://fortiguard.fortinet.com/psirt/FG-IR-26-119

Affected products (1)

cpe:2.3:a:fortinet:fortiddos-f:*:*:*:*:*:*:*:*

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