How severe is CVE-2025-24477?

CVE-2025-24477 has a CVSS 3.x base score of 4.2, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2025-24477 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-24477?

CVE-2025-24477 affects Fortinet Fortios. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-24477?

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

Does CVE-2025-24477 have an EU (EUVD) identifier?

Yes. CVE-2025-24477 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-21420.

When was CVE-2025-24477 published?

CVE-2025-24477 was published on 2025-07-15 and last updated on 2026-06-17.

CVE-2025-24477

CVE-2025-24477 is a medium-severity vulnerability in Fortinet Fortios with a CVSS 3.x base score of 4.2. 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-122.

Key facts

Severity: Medium (CVSS 3.x base score 4.2)
EPSS exploit prediction: 0% (11th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-21420
Weakness: CWE-122
Affected product: Fortinet Fortios
Published: 2025-07-15
Last modified: 2026-06-17

Description

A heap-based buffer overflow vulnerability in Fortinet FortiOS 7.6.0 through 7.6.2, FortiOS 7.4.0 through 7.4.7, FortiOS 7.2.4 through 7.2.12 allows an attacker to escalate its privileges via a specially crafted CLI command

Frequently asked questions

What is CVE-2025-24477?: A heap-based buffer overflow vulnerability in Fortinet FortiOS 7.6.0 through 7.6.2, FortiOS 7.4.0 through 7.4.7, FortiOS 7.2.4 through 7.2.12 allows an attacker to escalate its privileges via a specially crafted CLI command
How severe is CVE-2025-24477?: CVE-2025-24477 has a CVSS 3.x base score of 4.2, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2025-24477 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-24477?: CVE-2025-24477 affects Fortinet Fortios. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-24477?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-24477 have an EU (EUVD) identifier?: Yes. CVE-2025-24477 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-21420.
When was CVE-2025-24477 published?: CVE-2025-24477 was published on 2025-07-15 and last updated on 2026-06-17.

References

https://fortiguard.fortinet.com/psirt/FG-IR-25-026

Affected products (1)

cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*

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