CVE-2025-61624: medium-severity vulnerability in Fortinet FortiOS
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
Prioritize patching. It under exploitation confirmed by CISA and has an official Brazilian government alert.
Brazil's federal government published an alert, recommendation or bulletin that cites this vulnerability.
- CISC Gov.br · 20 Oct 2026Boletim do CISC de Vulnerabilidadesread on gov.br ↗
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
An authenticated administrator can use specific commands to write or delete files anywhere on the system by bypassing directory restrictions. This allows an attacker with admin access to potentially compromise the device's integrity and stability.
Path traversal vulnerability in Fortinet products (FortiOS, FortiPAM, FortiProxy, FortiSwitchManager) allows authenticated administrators with read-write permissions to write or delete arbitrary files via CLI commands that do not properly validate pathname inputs. Attack requires existing admin credentials; impact includes unauthorized file manipulation and potential system compromise.
In the same product, most dangerous first.