CVE-2025-25249

CVE Enrichment

CVSS: 9.8 CRITICAL
EPSS: 3.80%
EPSS Percentile: 89.79%
CISA KEV: YES — Known Exploited Vulnerability

Description

A heap-based buffer overflow vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2.0 through 7.2.11, FortiOS 7.0.0 through 7.0.17, FortiOS 6.4 all versions, FortiSwitchManager 7.2.0 through 7.2.6, FortiSwitchManager 7.0.0 through 7.0.5 allows attacker to execute unauthorized code or commands via specially crafted packets

Technical Details

CVSS Version: 3.1
CNA / NVD Source: psirt@fortinet.com
Published: 14-Jan-2026 00:15
Last Modified: 08-Oct-2026 01:17
EPSS Date: 2026-10-13
CWE: CWE-122, CWE-787

CVSS Vector


            CVSS:3.1                            AV:N /
                            AC:L /
                            PR:N /
                            UI:N /
                            S:U /
                            C:H /
                            I:H /
                            A:H

CISA KEV Details

Date Added: 2026-09-09
Remediation Due: 2026-09-12
Known 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.
Notes: 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

Affected Products / Versions

fortinet / fortios
Version / affected range: * · from (inclusive) 6.4.0 · before (exclusive) 7.0.18
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*
fortinet / fortios
Version / affected range: * · from (inclusive) 7.2.0 · before (exclusive) 7.2.12
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*
fortinet / fortios
Version / affected range: * · from (inclusive) 7.4.0 · before (exclusive) 7.4.9
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*
fortinet / fortios
Version / affected range: * · from (inclusive) 7.6.0 · before (exclusive) 7.6.4
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*
fortinet / fortiswitchmanager
Version / affected range: * · from (inclusive) 7.0.0 · before (exclusive) 7.0.6
cpe:2.3:a:fortinet:fortiswitchmanager:*:*:*:*:*:*:*:*
fortinet / fortiswitchmanager
Version / affected range: * · from (inclusive) 7.2.0 · before (exclusive) 7.2.7
cpe:2.3:a:fortinet:fortiswitchmanager:*:*:*:*:*:*:*:*
fortinet / fortisase
Version / affected range: 25.1.39
cpe:2.3:a:fortinet:fortisase:25.1.39:*:*:*:-:*:*:*
fortinet / fortisase
Version / affected range: 25.1.51
cpe:2.3:a:fortinet:fortisase:25.1.51:*:*:*:-:*:*:*
siemens / ruggedcom_ape1808_firmware
Version / affected range: -
cpe:2.3:o:siemens:ruggedcom_ape1808_firmware:-:*:*:*:*:*:*:*

References

Last enrichment sync: 14-Oct-2026 06:57
Sources: NVD · FIRST EPSS · CISA KEV
Latest successful provider update; providers refresh independently.

Reported Context (1)

CVE-2025-25249 Recorded Future Reports 94 High-Impact Vulnerabilities in September 2026, Including 80 Actively Exploited

CVE (76)

Malware (6)

Threat Actors (8)

Vendors (10)

Products (67)

Tools (7)

Industries (1)

Countries (2)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.