How severe is CVE-2026-25689?

CVE-2026-25689 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.

Is CVE-2026-25689 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-25689?

CVE-2026-25689 primarily affects Fortinet Fortideceptor. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-25689?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-25689 have an EU (EUVD) identifier?

Yes. CVE-2026-25689 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-10530.

When was CVE-2026-25689 published?

CVE-2026-25689 was published on 2026-03-10 and last updated on 2026-06-17.

CVE-2026-25689

CVE-2026-25689 is a medium-severity vulnerability in Fortinet Fortideceptor with a CVSS 3.x base score of 6.5. 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-88.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 1% (41st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-10530
Weakness: CWE-88
Affected product: Fortinet Fortideceptor
Published: 2026-03-10
Last modified: 2026-06-17

Description

An improper neutralization of argument delimiters in a command ('argument injection') vulnerability in Fortinet FortiDeceptor 6.2.0, FortiDeceptor 6.0 all versions, FortiDeceptor 5.3 all versions, FortiDeceptor 5.2 all versions, FortiDeceptor 5.1 all versions, FortiDeceptor 5.0 all versions, FortiDeceptor 4.3 all versions, FortiDeceptor 4.2 all versions, FortiDeceptor 4.1 all versions, FortiDeceptor 4.0 all versions may allow a privileged attacker with super-admin profile and CLI access to delete sensitive files via crafted HTTP requests.

Frequently asked questions

What is CVE-2026-25689?: An improper neutralization of argument delimiters in a command ('argument injection') vulnerability in Fortinet FortiDeceptor 6.2.0, FortiDeceptor 6.0 all versions, FortiDeceptor 5.3 all versions, FortiDeceptor 5.2 all versions, FortiDeceptor 5.1 all versions, FortiDeceptor 5.0 all versions, FortiDeceptor 4.3 all versions, FortiDeceptor 4.2 all versions, FortiDeceptor 4.1 all versions, FortiDeceptor 4.0 all versions may allow a privileged attacker with super-admin profile and CLI access to delete sensitive files via crafted HTTP requests.
How severe is CVE-2026-25689?: CVE-2026-25689 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.
Is CVE-2026-25689 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-25689?: CVE-2026-25689 primarily affects Fortinet Fortideceptor. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-25689?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-25689 have an EU (EUVD) identifier?: Yes. CVE-2026-25689 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-10530.
When was CVE-2026-25689 published?: CVE-2026-25689 was published on 2026-03-10 and last updated on 2026-06-17.

References

https://fortiguard.fortinet.com/psirt/FG-IR-26-094

Affected products (2)

cpe:2.3:a:fortinet:fortideceptor:*:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortideceptor:6.2.0:*:*:*:*:*:*:*

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