CVE detail
CVE-2025-25249: Fortinet Multiple Products Heap-based Buffer Overflow Vulnerability
Source: CISA Known Exploited Vulnerabilities catalog · back to feed
Vendor / product
Fortinet · Multiple Products
- Date added (KEV)
- Sep 09, 2026
- CISA due date
- Sep 12, 2026
- Ransomware campaign use
- Unknown
Required action
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.
Vendor fix: Vendor advisory
Scorifya interpretation
AI-generatedA short, structured read of the record above, generated when this page first loads, then cached for a week.
Plain English
Technical detail
From CISA
Fortinet FortiOS, FortiSwitchManager, and FortiSASE contain a heap-based buffer overflow vulnerability that allows an attacker to execute unauthorized code or commands via specially crafted packets.
https://fortiguard.fortinet.com/psirt/FG-IR-25-084 ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2025-25249
See what attackers can see on your domain
This vulnerability is on CISA's Known Exploited Vulnerabilities list, so it is being exploited in the wild right now. Scorifya can't test for Fortinet directly, but in about 30 seconds it shows what your own domain exposes publicly across TLS, security headers, DNS, and cookies: the surface attackers probe first.
SOC 2 compliance
Tracking remediation across your cloud infrastructure?
Scorifya Controls automates 54 SOC 2 checks across AWS, GitHub, GCP, and Azure, and gives you a manual evidence trail for the controls no tool can automate. Self-hosted, three tiers from $99/mo.
See Scorifya Controls →References
- https://fortiguard.fortinet.com/psirt/FG-IR-25-084Vendor AdvisoryMitigation
- https://cert-portal.siemens.com/productcert/html/ssa-864900.htmlThird Party Advisory
- https://socradar.io/blog/cve-2025-25249-pivotc2-fortigate-rat/ExploitThird Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-25249US Government Resource
Other recent CVEs from Fortinet
- CVE-2025-68686FortiOS, Fortinet FortiOS Exposure of Sensitive Information to an Unauthorized Actor Vulnerability
- CVE-2026-25089FortiSandbox, Fortinet FortiSandbox OS Command Injection Vulnerability
- CVE-2026-39808FortiSandbox, Fortinet FortiSandbox OS Command Injection Vulnerability
- CVE-2026-21643FortiClient EMS, Fortinet FortiClient EMS SQL Injection Vulnerability
- CVE-2026-35616FortiClient EMS, Fortinet FortiClient EMS Improper Access Control Vulnerability