CVE-2025-53379 | A out-of-bounds read vulnerability in Fortinet FortiAuthenti… | CVSS 7.0 HIGH

Description

A out-of-bounds read vulnerability in Fortinet FortiAuthenticator 6.6.0 through 6.6.2, FortiAuthenticator 6.5 all versions may allow a remote unauthenticated attacker to retrieve sensitive information via a specially crafted request.

Metadata

CVE ID: CVE-2025-53379
State: PUBLISHED
Assigner: fortinet
Reserved: 2025-06-27 15:44 UTC
Published: 2026-07-14 15:13 UTC
Last updated: 2026-07-14 15:56 UTC
Primary CWE: CWE-125
Information disclosure
Vendor / Product: Fortinet / FortiAuthenticator
Sources: cve.org · NVD

Severity & Metrics

7.0 HIGH CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:F/RL:O/RC:C

SSVC — CISA Coordinator

Exploitation: none
Automatable: yes
Tech. Impact: partial

Affected products (1)

Vendor	Product	Platform	Versions
Fortinet	FortiAuthenticator	—	6.6.0 ≤ 6.6.2, 6.5.0 ≤ 6.5.7, 6.4.0 ≤ 6.4.11, 6.3.0 ≤ 6.3.5

Weakness (CWE)

CWE	Source	Description
CWE-125	cna	Information disclosure

CVSS scores (1)

Score	Severity	Version	Source	Vector
7.0	HIGH	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:F/RL:O/RC:C

References (1)

https://fortiguard.fortinet.com/psirt/FG-IR-26-146 https://fortiguard.fortinet.com/psirt/FG-IR-26-146