How severe is CVE-2025-46776?

CVE-2025-46776 has a CVSS 3.x base score of 6.4, rated medium severity. It is exploitable over local access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-46776 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-46776?

CVE-2025-46776 affects Fortinet Fortiextender Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-46776?

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

Does CVE-2025-46776 have an EU (EUVD) identifier?

Yes. CVE-2025-46776 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-198014.

When was CVE-2025-46776 published?

CVE-2025-46776 was published on 2025-11-18 and last updated on 2026-06-17.

CVE-2025-46776

CVE-2025-46776 is a medium-severity vulnerability in Fortinet Fortiextender Firmware with a CVSS 3.x base score of 6.4. 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-120.

Key facts

Severity: Medium (CVSS 3.x base score 6.4)
EPSS exploit prediction: 0% (4th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-198014
Weakness: CWE-120
Affected product: Fortinet Fortiextender Firmware
Published: 2025-11-18
Last modified: 2026-06-17

Description

A buffer copy without checking size of input ('classic buffer overflow') vulnerability in Fortinet FortiExtender 7.6.0 through 7.6.1, FortiExtender 7.4.0 through 7.4.6, FortiExtender 7.2 all versions, FortiExtender 7.0 all versions may allow an authenticated user to execute arbitrary code or commands via crafted CLI commands.

Frequently asked questions

What is CVE-2025-46776?: A buffer copy without checking size of input ('classic buffer overflow') vulnerability in Fortinet FortiExtender 7.6.0 through 7.6.1, FortiExtender 7.4.0 through 7.4.6, FortiExtender 7.2 all versions, FortiExtender 7.0 all versions may allow an authenticated user to execute arbitrary code or commands via crafted CLI commands.
How severe is CVE-2025-46776?: CVE-2025-46776 has a CVSS 3.x base score of 6.4, rated medium severity. It is exploitable over local access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-46776 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-46776?: CVE-2025-46776 affects Fortinet Fortiextender Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-46776?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-46776 have an EU (EUVD) identifier?: Yes. CVE-2025-46776 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-198014.
When was CVE-2025-46776 published?: CVE-2025-46776 was published on 2025-11-18 and last updated on 2026-06-17.

References

https://fortiguard.fortinet.com/psirt/FG-IR-25-251

Affected products (1)

cpe:2.3:o:fortinet:fortiextender_firmware:*:*:*:*:*:*:*:*

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