CVE-2025-32756: Fortinet Multiple Products Stack-Based Buffer Overflow Vulnerability
Vulnerability summary
CVE-2025-32756 is a critical (CVSS 9.8) Stack-based Buffer Overflow vulnerability in Fortinet Multiple Products. It is known to be exploited: CISA lists it, first on 14-05-2025. EPSS estimates a 30.94% chance of exploitation in the next 30 days, higher than 98.2% of scored vulnerabilities.
Timeline
- 13-05-2025PublishedVulnerability first disclosed.
- 14-05-2025Added to CISA KEVFortinet Multiple Products Stack-Based Buffer Overflow Vulnerability
- 04-06-2025CISA remediation dueApply mitigations per vendor instructions.
- 26-02-2026Last modifiedVulnerability information updated.
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.
CVSS metrics
2 scores · 2 sources · 1 version- CVE.orgCNA9.6CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:X/RC:CDiffers
EPSS trend
Probability
30.94%
Chance of exploitation in the next 30 days
Percentile
98%
Versus all other CVEs
30-day change
+1.13 pp
From 29.81% on 20-09-2026
Known exploited
Compare KEV catalogs
CISA KEVListed- Added
- 14-05-2025
- Federal due date
- 04-06-2025
CISA required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. fortiguard.fortinet.com/psirt/FG-IR-25-254 nvd.nist.gov/vuln/detail/CVE-2025-32756
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-121Stack-based Buffer OverflowA stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
- CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.
Affected systems
Fortinet5 products
- forticamera_firmware≥ 2.1.0, ≤ 2.1.3 | 2.0.0 | ≥ 2.0.0, ≤ 2.1.3 | ≥ 1.1.0, ≤ 1.1.5
- fortimail≥ 7.6.0, ≤ 7.6.2 | ≥ 7.4.0, ≤ 7.4.4 | ≥ 7.2.0, ≤ 7.2.7 | ≥ 7.0.0, ≤ 7.0.8 | ≥ 7.0.0, < 7.0.9 | ≥ 7.2.0, < 7.2.8 | ≥ 7.4.0, < 7.4.5 | ≥ 7.6.0, < 7.6.3
- fortindr≥ 7.4.0, ≤ 7.4.7 | ≥ 7.2.0, ≤ 7.2.4 | ≥ 7.1.0, ≤ 7.1.1 | ≥ 7.0.0, ≤ 7.0.6 | ≥ 1.5.0, ≤ 1.5.3 | ≥ 1.3.0, ≤ 1.3.1 | ≥ 7.0.0, < 7.0.7 | ≥ 7.2.0, < 7.2.5 | ≥ 7.4.0, < 7.4.8 | 1.1.0 | 1.2.0 | 1.3.0 | 1.4.0 | 1.5.0 | 7.1.0 | 7.1.1 | 7.6.0
- fortirecorder_firmware≥ 7.2.0, ≤ 7.2.3 | ≥ 7.0.0, ≤ 7.0.5 | ≥ 6.4.0, ≤ 6.4.5 | ≥ 6.4.0, < 6.4.6 | ≥ 7.0.0, < 7.0.6 | ≥ 7.2.0, < 7.2.4
- fortivoice≥ 7.0.0, ≤ 7.0.6 | ≥ 6.4.0, ≤ 6.4.10 | ≥ 6.4.0, < 6.4.11 | ≥ 7.0.0, < 7.0.7 | 7.2.0
1 vendor · 5 products
References
2 links- fortiguard.fortinet.com/psirt/FG-IR-25-254Vendor Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-32756Government ResourceUS Government Resource