Externally-Controlled Format String Vulnerability in Fortinet FortiOS
CVE-2025-64157

6.7MEDIUM

Key Information:

Vendor

Fortinet
Status
FortiOS
Vendor
CVE Published:
10 February 2026

What is CVE-2025-64157?

An authenticated administrator can exploit a use of externally-controlled format string vulnerability in Fortinet's FortiOS versions 7.6.0 through 7.6.4, 7.4.0 through 7.4.9, and 7.2.0 through 7.2.11, as well as all versions of 7.0. This vulnerability allows the execution of unauthorized commands through specifically crafted configurations, potentially compromising the security of the system.

Affected Version(s)

FortiOS 7.6.0 <= 7.6.4

FortiOS 7.4.0 <= 7.4.9

FortiOS 7.2.0 <= 7.2.11

References

https://fortiguard.fortinet.com/psirt/FG-IR-25-795

CVSS V3.1

Score:
6.7
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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