CVE-2025-32756

Fortinet Multiple Products Stack-Based Buffer Overflow

9.8 CRITICALActively exploited (CISA KEV)EPSS 29.8%

Published13 May 2025
Added to CISA KEV14 May 2025
Remediation due4 Jun 2025

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 3.1 breakdown

Attack vectorNetwork

Attack complexityLow

Privileges requiredNone

User interactionNone

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Fortinet Fortimail≥ 7.0.0 < 7.0.9 · ≥ 7.2.0 < 7.2.8 · ≥ 7.4.0 < 7.4.5 · ≥ 7.6.0 < 7.6.3

Fortinet Fortindr≥ 7.0.0 < 7.0.7 · ≥ 7.2.0 < 7.2.5 · ≥ 7.4.0 < 7.4.8 · 1.1.0

Fortinet Fortirecorder≥ 6.4.0 < 6.4.6 · ≥ 7.0.0 < 7.0.6 · ≥ 7.2.0 < 7.2.4

Fortinet Fortivoice≥ 6.4.0 < 6.4.11 · ≥ 7.0.0 < 7.0.7 · 7.2.0

Fortinet Forticamera Firmware≥ 1.1.0 ≤ 1.1.5 · ≥ 2.0.0 ≤ 2.1.3

Remediation

Fixed in

Fortinet Fortimail≥ 7.0.9

Fortinet Fortindr≥ 7.0.7

Fortinet Fortirecorder≥ 6.4.6

Fortinet Fortivoice≥ 6.4.11

Patch & vendor advisories

https://fortiguard.fortinet.com/psirt/FG-IR-25-254

References

https://fortiguard.fortinet.com/psirt/FG-IR-25-254Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-32756US Government Resource

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

Frequently asked

Is CVE-2025-32756 being actively exploited?

Yes. CVE-2025-32756 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 14 May 2025.

How severe is CVE-2025-32756?

CVE-2025-32756 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 29.8% probability of exploitation.

Which products are affected by CVE-2025-32756?

Affected products include Fortinet Fortimail, Fortinet Fortindr, Fortinet Fortirecorder, Fortinet Fortivoice, Fortinet Forticamera Firmware.

How do I fix CVE-2025-32756?

Upgrade affected software to a fixed version, for example Fortinet Fortimail 7.0.9, Fortinet Fortindr 7.0.7, Fortinet Fortirecorder 6.4.6 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-32756 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, a risk for it never ranks below high, and the update that fixes it moves to the Emergency patch lane. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.