CVE-2025-53379: Information disclosure in Fortinet FortiAuthenticator
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.
AI Analysis
Technical Summary
This vulnerability in Fortinet FortiAuthenticator involves an out-of-bounds read condition that can be triggered remotely without authentication. It affects FortiAuthenticator versions 6.6.0 through 6.6.2 and all versions of 6.5. Exploitation could lead to unauthorized disclosure of sensitive information. The vendor has released an official fix to address this issue.
Potential Impact
Successful exploitation allows a remote unauthenticated attacker to retrieve sensitive information from the affected FortiAuthenticator devices. There is no indication of impact on integrity or availability. No known exploits are reported in the wild at this time.
Mitigation Recommendations
An official fix is available from Fortinet to remediate this vulnerability. Users should apply the vendor-provided patches to affected FortiAuthenticator versions 6.6.0 through 6.6.2 and all 6.5 versions. Since this is not a cloud service, remediation requires customer action to update the affected devices.
CVE-2025-53379: Information disclosure in Fortinet FortiAuthenticator
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.
CVSS v3.1
Score 7.0high
Affected software
cpe:2.3:a:fortinet:fortiauthenticator:6.6.2:*:*:*:*:*:*:*cpe:2.3:a:fortinet:fortiauthenticator:6.6.1:*:*:*:*:*:*:*cpe:2.3:a:fortinet:fortiauthenticator:6.6.0:*:*:*:*:*:*:*cpe:2.3:a:fortinet:fortiauthenticator:6.5.7:*:*:*:*:*:*:*cpe:2.3:a:fortinet:fortiauthenticator:6.5.6:*:*:*:*:*:*:*cpe:2.3:a:fortinet:fortiauthenticator:6.5.5:*:*:*:*:*:*:*AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Fortinet FortiAuthenticator involves an out-of-bounds read condition that can be triggered remotely without authentication. It affects FortiAuthenticator versions 6.6.0 through 6.6.2 and all versions of 6.5. Exploitation could lead to unauthorized disclosure of sensitive information. The vendor has released an official fix to address this issue.
Potential Impact
Successful exploitation allows a remote unauthenticated attacker to retrieve sensitive information from the affected FortiAuthenticator devices. There is no indication of impact on integrity or availability. No known exploits are reported in the wild at this time.
Mitigation Recommendations
An official fix is available from Fortinet to remediate this vulnerability. Users should apply the vendor-provided patches to affected FortiAuthenticator versions 6.6.0 through 6.6.2 and all 6.5 versions. Since this is not a cloud service, remediation requires customer action to update the affected devices.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- fortinet
- Date Reserved
- 2025-06-27T15:44:12.816Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
Threat ID: 6a565a3968715ace43c7b5a2
Added to database: 07/14/2026, 15:48:09 UTC
Last enriched: 07/22/2026, 21:50:32 UTC
Last updated: 08/28/2026, 22:52:06 UTC
Views: 112
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