CVE-2025-32756: Fortinet Multiple Products Stack-Based Buffer Overflow Vulnerability
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.
Other sources
Fortinet FortiFone, FortiVoice, FortiNDR and FortiMail contain a stack-based overflow vulnerability that may allow a remote unauthenticated attacker to execute arbitrary code or commands via crafted HTTP requests.
— CISA
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
FortiCamerato a version that resolves this vulnerability.Fixed in 2.1.4 - Upgrade
Upgrade
FortiMailto a version that resolves this vulnerability.Fixed in 7.0.9 - Upgrade
Upgrade
FortiMailto a version that resolves this vulnerability.Fixed in 7.2.8 - Upgrade
Upgrade
FortiMailto a version that resolves this vulnerability.Fixed in 7.4.5 - Upgrade
Upgrade
FortiMailto a version that resolves this vulnerability.Fixed in 7.6.3 - Upgrade
Upgrade
FortiNDRto a version that resolves this vulnerability.Fixed in 7.0.7 - Upgrade
Upgrade
FortiNDRto a version that resolves this vulnerability.Fixed in 7.2.5 - Upgrade
Upgrade
FortiNDRto a version that resolves this vulnerability.Fixed in 7.4.8 - Upgrade
Upgrade
FortiNDRto a version that resolves this vulnerability.Fixed in 7.6.1 - Upgrade
Upgrade
FortiRecorderto a version that resolves this vulnerability.Fixed in 6.4.6 - Upgrade
Upgrade
FortiRecorderto a version that resolves this vulnerability.Fixed in 7.0.6 - Upgrade
Upgrade
FortiRecorderto a version that resolves this vulnerability.Fixed in 7.2.4 - Upgrade
Upgrade
FortiVoiceto a version that resolves this vulnerability.Fixed in 6.4.11 - Upgrade
Upgrade
FortiVoiceto a version that resolves this vulnerability.Fixed in 7.0.7 - Upgrade
Upgrade
FortiVoiceto a version that resolves this vulnerability.Fixed in 7.2.1
Event History
Frequently Asked Questions
What is the severity of CVE-2025-32756?
CVE-2025-32756 has a critical severity due to its potential for remote code execution through a stack-based buffer overflow.
How do I fix CVE-2025-32756?
To fix CVE-2025-32756, upgrade affected Fortinet products to the latest patched versions provided by Fortinet.
Which Fortinet products are affected by CVE-2025-32756?
CVE-2025-32756 affects FortiVoice, FortiRecorder, FortiMail, and FortiNDR across specific version ranges.
What types of attacks can exploit CVE-2025-32756?
Exploitation of CVE-2025-32756 can allow an attacker to execute arbitrary code on the vulnerable system.
Is CVE-2025-32756 easy to exploit?
Yes, CVE-2025-32756 is considered relatively easy to exploit if the target system is exposed to the internet.