What is CVE-2025-53609?

CVE-2025-53609 is a medium-severity vulnerability in Fortinet Fortiweb, classified under Relative Path Traversal. CVSS score: 4.9/10. Published 2025-09-09.

How severe is CVE-2025-53609?

Medium severity. CVSS v3 base score is 4.9 out of 10.

Is CVE-2025-53609 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Path Traversal in Fortinet Fortiweb

CVE-2025-53609

A Relative Path Traversal vulnerability [CWE-23] in FortiWeb 7.6.0 through 7.6.4, 7.4.0 through 7.4.8, 7.2.0 through 7.2.11, 7.0.2 through 7.0.11 may allow an authenticated attacker to perform an arbitrary file read on the underlying syste…

EPSS: 0.084 (94.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.

Affected products

Fortinet Fortiweb — versions 7.6.0, 7.4.0, 7.2.0

Weakness classification (CWE)

CWE-23 — Relative Path Traversal

Public proof-of-concept exploits

References

psirt@fortinet.com (Vendor Advisory)

Frequently asked questions

What is CVE-2025-53609?: CVE-2025-53609 is a medium-severity vulnerability in Fortinet Fortiweb, classified under Relative Path Traversal. CVSS score: 4.9/10. Published 2025-09-09.
How severe is CVE-2025-53609?: Medium severity. CVSS v3 base score is 4.9 out of 10.
Is CVE-2025-53609 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.