What is the CVSS score of CVE-2025-58413?

CVE-2025-58413 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.0%.

Which versions of Fortios are affected by CVE-2025-58413?

Organizations using Fortinet FortiOS 7.6.0 face notable risk from CVE-2025-58413, a stack-based buffer overflow vulnerability rated CVSS 7.5.

How to fix or mitigate CVE-2025-58413?

Within 30 days: Identify all affected systems running Fortinet FortiOS 7.6.0 and apply vendor patches as part of regular patch cycle. If patching is delayed, consider network segmentation to limit exposure.

Fortios CVE-2025-58413

HIGH

Stack-based Buffer Overflow (CWE-121)

2025-11-18 psirt@fortinet.com

Buffer Overflow Fortinet Stack Overflow Fortios Fortisase

7.5

CVSS 3.1

CVSS VectorNVD

CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Adjacent

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:22 vuln.today

CVE Published

Nov 18, 2025 - 17:16 nvd

HIGH 7.5

DescriptionNVD

A stack-based buffer overflow vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2 all versions, FortiOS 7.0 all versions, FortiOS 6.4 all versions, FortiOS 6.2 all versions, FortiOS 6.0 all versions, FortiSASE 25.3.b allows attacker to execute unauthorized code or commands via specially crafted packets

AnalysisAI

A stack-based buffer overflow vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2 all versions, FortiOS 7.0 all versions, FortiOS 6.4 all versions, FortiOS. Rated high severity (CVSS 7.5), this vulnerability is no authentication required. No vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-121. A stack-based buffer overflow vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2 all versions, FortiOS 7.0 all versions, FortiOS 6.4 all versions, FortiOS 6.2 all versions, FortiOS 6.0 all versions, FortiSASE 25.3.b allows attacker to execute unauthorized code or commands via specially crafted packets Affected products include: Fortinet Fortios, Fortinet Fortisase. Version information: through 7.6.3.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

CVE-2025-58413 vulnerability details – vuln.today

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Fortios CVE-2025-58413

CVSS VectorNVD

Lifecycle Timeline

DescriptionNVD

AnalysisAI

Technical ContextAI

RemediationAI

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External POC / Exploit Code