CVE-2025-32756: Fortinet FortiNDR: Stack-based Buffer Overflow

Analysis on rafaelpfister.ch

Article · October 2, 2026 CVE-2026-104286: FortiMail Zero-Day Is Being Exploited - Workaround and Compromise Assessment Fortinet reports a critical, actively exploited path traversal vulnerability in FortiMail 7.2 through 8.0 (CVE-2026-104286, CVSS 9.8). A patch is not yet available. The workaround disables IBE or blocks Internet access to the management interface; indicators for assessing compromise are also available.

Vendor description

A stack-based buffer overflow vulnerability [CWE-121] vulnerability in Fortinet FortiCamera 2.1.0 through 2.1.3, FortiCamera 2.0 all versions, FortiCamera 1.1 all versions, FortiMail 7.6.0 through 7.6.2, FortiMail 7.4.0 through 7.4.4, FortiMail 7.2.0 through 7.2.7, FortiMail 7.0.0 through 7.0.8, FortiNDR 7.6.0, FortiNDR 7.4.0 through 7.4.7, FortiNDR 7.2.0 through 7.2.4, FortiNDR 7.0.0 through 7.0.6, FortiRecorder 7.2.0 through 7.2.3, FortiRecorder 7.0.0 through 7.0.5, FortiRecorder 6.4.0 through 6.4.5, FortiVoice 7.2.0, FortiVoice 7.0.0 through 7.0.6, FortiVoice 6.4.0 through 6.4.10 allows a remote unauthenticated attacker to execute arbitrary code or commands via sending HTTP requests with specially crafted hash cookie.

Reference data

Vendor

Fortinet

Affected products

FortiNDR
FortiCamera
FortiRecorder
FortiVoice
FortiMail

CVSS 3.1

9.6 (CRITICAL)

Vector

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

Weakness type

CWE-121: Stack-based Buffer Overflow

Published

May 13, 2025

In KEV catalog since

May 14, 2025

US federal deadline

June 4, 2025

Official sources

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