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CVE-2025-25249CISA KEV

Fortinet Multiple Products Heap-based Buffer Overflow Vulnerability

CISA lists this Fortinet Multiple Products vulnerability as known exploited. The vendor's advisory has the fixed versions.

CISA KEVVendor advisoryNVD

CISA catalog record

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.

Product
Multiple Products
Added to KEV
9 Sep 2026
Federal remediation due
12 Sep 2026
Known ransomware use
Not reported

What changed

First observed 14 Oct 2026

No field changes in the recorded history.

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ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 14 Oct 19:01 UTC · 254 of 255 readable · 253 fully read · documentation 0/409 current

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