CVE-2025-25249

At a glance

Severity: HIGH 7.4
Exploitation: Known exploited (CISA KEV) · added 2026-09-09
Exploited per ENISA since 2026-09-09
EPSS: EPSS 3.74 % · percentile 90 (2026-10-27)
State: PUBLISHED
Published: 2026-01-13
Updated: 2026-10-15
Assigner: fortinet
NVD status: Analyzed

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

Scores

Version	Score	Vector	Scored by
CVSS 3.1	HIGH 7.4	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:W/RC:C	fortinet
CVSS 3.1	HIGH 8.1	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H	NVD · psirt@fortinet.com (Secondary)
CVSS 3.1	CRITICAL 9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	NVD · nvd@nist.gov (Primary)

Weaknesses (CWE)

European references

ENISA EUVD · EUVD-2026-2223
GCVE · GCVE-0-2025-25249

CERT-FR advisories

CERTFR-2026-AVI-0035 — Multiples vulnérabilités dans les produits Fortinet · cert.ssi.gouv.fr

Affected configurations (NVD CPE)

cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* ≥ 6.4.0 < 7.0.18
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* ≥ 7.2.0 < 7.2.12
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* ≥ 7.4.0 < 7.4.9
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* ≥ 7.6.0 < 7.6.4
cpe:2.3:a:fortinet:fortiswitchmanager:*:*:*:*:*:*:*:* ≥ 7.0.0 < 7.0.6
cpe:2.3:a:fortinet:fortiswitchmanager:*:*:*:*:*:*:*:* ≥ 7.2.0 < 7.2.7
cpe:2.3:a:fortinet:fortisase:25.1.39:*:*:*:-:*:*:*
cpe:2.3:a:fortinet:fortisase:25.1.51:*:*:*:-:*:*:*
cpe:2.3:o:siemens:ruggedcom_ape1808_firmware:-:*:*:*:*:*:*:*

Affected products

Product	Versions
Fortinet · FortiSwitchManager	affected 7.2.2 ≤ 7.2.5
Fortinet · FortiOS	affected 7.6.0 ≤ 7.6.2 ; affected 7.4.0 ≤ 7.4.7 ; affected 7.2.4 ≤ 7.2.11

References

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
CISA Known Exploited Vulnerabilities	CC0 1.0
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)	Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD