Live › vulnerability › CVE-2025-25249
Go to dashboardHeap-based buffer overflow in the cw_acd (CAPWAP) daemon of FortiOS and FortiSwitchManager. A remote unauthenticated attacker can run code or commands with crafted requests. Fortinet notes ASLR and PIE raise exploitation difficulty. CISA added it to KEV on 2026-09-09. Fixed in FortiOS 7.6.4, 7.4.9, 7.2.12, 7.0.18; FortiOS 6.4 has no fix, so migrate. FortiSwitchManager fixed in 7.2.7 and 7.0.6.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 19:11 UTC, 5h before NVD. All times on this page are UTC.
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.
| Product | Ecosystem | Affected | Fixed in |
|---|---|---|---|
| Fortinet Multiple Products | vendor | – | – |
| FortiOS | vendor | 7.6.0-7.6.3, 7.4.0-7.4.8, 7.2.0-7.2.11, 7.0.0-7.0.17, 6.4 all | 7.6.4, 7.4.9, 7.2.12, 7.0.18 |
| FortiSwitchManager | vendor | 7.2.0-7.2.6, 7.0.0-7.0.5 | 7.2.7, 7.0.6 |
| fortinet fortios | vendor | >= 6.4.0, < 7.0.18 |
| 7.0.18 |
| fortinet fortios | vendor | >= 7.2.0, < 7.2.12 | 7.2.12 |
| fortinet fortios | vendor | >= 7.4.0, < 7.4.9 | 7.4.9 |
| fortinet fortios | vendor | >= 7.6.0, < 7.6.4 | 7.6.4 |
| fortinet fortiswitchmanager | vendor | >= 7.0.0, < 7.0.6 | 7.0.6 |
| fortinet fortiswitchmanager | vendor | >= 7.2.0, < 7.2.7 | 7.2.7 |
| fortinet fortisase | vendor | = 25.1.39 | – |
| fortinet fortisase | vendor | = 25.1.51 | – |
| siemens ruggedcom ape1808 firmware | vendor | – | – |
get system status on the device and compare the version with the affected rangesfabric service in allowaccess on any interface: show system interface in the CLIfabric from allowaccess on each interfaceEach row is the first time that source carried this signal. The analyst’s rows are its own findings.
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.
CISA 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.
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