CVE-2025-32756

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.

Overview

State: PUBLISHED
Assigner (CNA): fortinet
CVSS severity: CRITICAL
CVSS score: 9.6 / 10
CVSS 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
Effective score: 9.6 / 10 CRITICAL source: CNA overview
CWE(s): CWE-121
Reserved: 2025-04-10
Published: 2025-05-13 16:46 UTC
Last updated: 2026-02-26 19:28 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2025/32xxx/CVE-2025-32756.json
Linked Threat: CVE-2025-32756 — CVE-2025-32756

CISA Known Exploited Vulnerabilities CISA KEV

CISA has confirmed in-the-wild exploitation of this CVE. Federal agencies must remediate by the due date below; private orgs should treat it as priority-1.

Vulnerability name: Fortinet Multiple Products Stack-Based Buffer Overflow Vulnerability
Vendor / project: Fortinet
Product: Multiple Products
Date added to KEV: 2025-05-14
Remediation due: 2025-06-04
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.
Ransomware campaign use: Unknown
CISA notes: https://fortiguard.fortinet.com/psirt/FG-IR-25-254 ; https://nvd.nist.gov/vuln/detail/CVE-2025-32756
CISA listing: www.cisa.gov/known-exploited-vulnerabilities-catalog

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published: 2025-05-13 15:15:57 UTC
NVD last modified: 2026-06-17 09:12:32 UTC
NVD CVSS v3.1: 9.8 / 10 CRITICAL source: psirt@fortinet.com
NVD CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitability subscore: 3.9 / 10
Impact subscore: 5.9 / 10
EPSS score: 0.3197 (probability of exploitation in next 30 days)
EPSS percentile: 98.13% vs all CVEs — higher = more likely to be exploited, as of 2026-07-27

NVD-assigned CWE(s): CWE-121, CWE-787 (differs from the CNA list above)

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID: EUVD-2025-14705
Assigner: fortinet
Published: May 13, 2025, 2:46:44 PM
Updated: Feb 26, 2026, 6:28:36 PM
EUVD base score (CVSS 3.1): 9.6 / 10
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
EUVD-reported EPSS: 22.2800
Vendors: Fortinet
Products: FortiCamera (1.1.0 ≤1.1.5)

FortiCamera (2.1.0 ≤2.1.3)

FortiNDR (7.6.0)

FortiCamera (2.0.0)

FortiNDR (1.5.0 ≤1.5.3)

FortiMail (7.6.0 ≤7.6.2)

FortiNDR (7.2.0 ≤7.2.4)

FortiNDR (7.0.0 ≤7.0.6)

FortiNDR (1.2.0)

FortiMail (7.2.0 ≤7.2.7)

FortiVoice (6.4.0 ≤6.4.10)

FortiMail (7.4.0 ≤7.4.4)

FortiVoice (7.2.0)

FortiNDR (7.4.0 ≤7.4.7)

FortiVoice (7.0.0 ≤7.0.6)

FortiRecorder (6.4.0 ≤6.4.5)

FortiRecorder (7.2.0 ≤7.2.3)

FortiNDR (7.1.0 ≤7.1.1)

FortiNDR (1.3.0 ≤1.3.1)

FortiNDR (1.4.0)

FortiRecorder (7.0.0 ≤7.0.5)

FortiNDR (1.1.0)

FortiMail (7.0.0 ≤7.0.8)
Aliases: GHSA-fcpx-h44g-vx2x

ENISA 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.

EUVD references (1)

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

Affected products (5)

Vendor	Product	Versions	Platforms
Fortinet	FortiNDR	`7.6.0` (affected), `7.4.0` (affected), `7.2.0` (affected), `7.1.0` (affected), `7.0.0` (affected), `1.5.0` (affected), `1.4.0` (affected), `1.3.0` (affected), `1.2.0` (affected), `1.1.0` (affected)	—
Fortinet	FortiCamera	`2.1.0` (affected), `2.0.0` (affected), `1.1.0` (affected)	—
Fortinet	FortiRecorder	`7.2.0` (affected), `7.0.0` (affected), `6.4.0` (affected)	—
Fortinet	FortiVoice	`7.2.0` (affected), `7.0.0` (affected), `6.4.0` (affected)	—
Fortinet	FortiMail	`7.6.0` (affected), `7.4.0` (affected), `7.2.0` (affected), `7.0.0` (affected)	—

Affected products — CPE 2.3 (15) NVD

NVD's normalized CPE 2.3 matchers, used by vendor tools (vulnerability scanners, asset managers) for automated detection. Compare with the CNA's free-text "Affected products" section above.

cpe:2.3:a:fortinet:fortimail:*:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortindr:*:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortindr:1.1.0:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortindr:1.2.0:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortindr:1.3.0:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortindr:1.4.0:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortindr:1.5.0:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortindr:7.1.0:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortindr:7.1.1:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortindr:7.6.0:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortirecorder:*:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortivoice:*:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortivoice:7.2.0:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:forticamera_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:fortinet:forticamera:-:*:*:*:*:*:*:*

Vendor references (1)

References embedded in the original CVE record by the assigning CNA.

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

Web references (3)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

https://attackerkb.com/topics/CVE-2025-32756 rapid7:attackerkb.com
https://fortiguard.fortinet.com/psirt/FG-IR-25-254 rapid7:fortiguard.fortinet.com
https://www.cve.org/CVERecord?id=CVE-2025-32756 rapid7:www.cve.org

NVD-tagged references (2)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

https://fortiguard.fortinet.com/psirt/FG-IR-25-254 psirt@fortinet.com Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-32756 134c704f-9b21-4f2e-91b3-4a467353bcc0 US Government Resource

Remediations (10)

Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.

Microsoft December 2025 Patch Tuesday - 56 Vulnerabilities Fixed ...

web:cybersecuritynews.com

Microsoft released its final Patch Tuesday updates of 2025 on December 9, addressing 56 security vulnerabilities across Windows, Office, Exchange Server, and other components.

2026-05-22 13:23 UTC
CVE-2025-32756: Buffer Overflow - horizon3.ai

web:horizon3.ai

Critical analysis of CVE-2025-32756 in Fortinet gear—unauth RCE exploit details and mitigation from Horizon3.ai experts.

2026-05-22 13:23 UTC
Microsoft Patch Tuesday, September 2025 Edition - Krebs on Security

web:krebsonsecurity.com

Microsoft Corp. today issued security updates to fix more than 80 vulnerabilities in its Windows operating systems and software. There are no known "zero-day" or actively exploited vulnerabilities ...

2026-05-22 13:23 UTC
Security Update Guide - Microsoft

web:msrc.microsoft.com

The Microsoft Security Response Center (MSRC) investigates all reports of security vulnerabilities affecting Microsoft products and services, and provides the information here as part of the ongoing effort to help you manage security risks and help keep your systems protected.

2026-05-22 13:23 UTC
Nvd - Cve-2025-32756

web:nvd.nist.gov

Secure .gov websites use HTTPS A lock () or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

2026-05-22 13:23 UTC
Fortinet fixes critical zero-day exploited in FortiVoice attacks

web:www.bleepingcomputer.com

Fortinet released security updates to patch a critical remote code execution vulnerability exploited as a zero-day in attacks targeting FortiVoice enterprise phone systems.

2026-05-22 13:23 UTC
Researchers Drop PoC for Fortinet CVE-2025-32756, Urging Quick Patching

web:www.cybersecurity-now.co.uk

Researchers have released PoC for CVE-2025-32756 , a severe security flaw, that is actively being exploited in Fortinet products like FortiMail and FortiCamera. This stack-based buffer overflow allows unauthenticated remote code execution.

2026-05-22 13:23 UTC
Microsoft KB Catalog: Updates, Issues, & Feedback - NinjaOne

web:www.ninjaone.com

Catalog of Microsoft KB updates with insights on performance & user sentiment. Find out what's working, what's not, & make informed decisions.

2026-05-22 13:23 UTC
Oracle Critical Patch Update Advisory - April 2026

web:www.oracle.com

This Critical Patch Update contains 481 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at April 2026 Critical Patch Update: Executive Summary and Analysis.

2026-05-22 13:23 UTC
Randy Franklin Smith's Ultimate Windows Security

web:www.ultimatewindowssecurity.com

How to Detect Pass-the-Hash Attacks Blog Series Come meet Randy in Orlando at Microsoft Ignite at Quest's Booth #1818 Detecting Pass-the-Hash with Honeypots Catch Malware Hiding in WMI with Sysmon For of all sad words of tongue or pen, the saddest are these: 'We weren't logging' Experimenting with Windows Security: Controls for Enforcing Policies Sysmon Event IDs 1, 6, 7 Report All the ...

2026-05-22 13:23 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2025-32756.json.

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            "cpe:2.3:a:fortinet:fortivoice:6.4.4:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortivoice:6.4.3:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortivoice:6.4.2:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortivoice:6.4.1:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortivoice:6.4.0:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "product": "FortiVoice",
          "vendor": "Fortinet",
          "versions": [
            {
              "status": "affected",
              "version": "7.2.0"
            },
            {
              "lessThanOrEqual": "7.0.6",
              "status": "affected",
              "version": "7.0.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.4.10",
              "status": "affected",
              "version": "6.4.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:a:fortinet:fortimail:7.6.2:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortimail:7.6.1:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortimail:7.6.0:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortimail:7.4.4:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortimail:7.4.3:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortimail:7.4.2:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortimail:7.4.1:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortimail:7.4.0:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortimail:7.2.7:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortimail:7.2.6:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortimail:7.2.5:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortimail:7.2.4:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortimail:7.2.3:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortimail:7.2.2:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortimail:7.2.1:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortimail:7.2.0:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortimail:7.0.8:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortimail:7.0.7:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortimail:7.0.6:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortimail:7.0.5:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortimail:7.0.4:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortimail:7.0.3:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortimail:7.0.2:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortimail:7.0.1:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortimail:7.0.0:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "product": "FortiMail",
          "vendor": "Fortinet",
          "versions": [
            {
              "lessThanOrEqual": "7.6.2",
              "status": "affected",
              "version": "7.6.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.4.4",
              "status": "affected",
              "version": "7.4.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.7",
              "status": "affected",
              "version": "7.2.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.8",
              "status": "affected",
              "version": "7.0.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.6,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "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",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-121",
              "description": "Execute unauthorized code or commands",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-15T12:54:22.845Z",
        "orgId": "6abe59d8-c742-4dff-8ce8-9b0ca1073da8",
        "shortName": "fortinet"
      },
      "references": [
        {
          "name": "https://fortiguard.fortinet.com/psirt/FG-IR-25-254",
          "url": "https://fortiguard.fortinet.com/psirt/FG-IR-25-254"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Upgrade to FortiNDR version 7.6.1 or above\nUpgrade to FortiNDR version 7.4.8 or above\nUpgrade to FortiNDR version 7.2.5 or above\nUpgrade to FortiNDR version 7.0.7 or above\nUpgrade to FortiCamera version 2.1.4 or above\nUpgrade to FortiRecorder version 7.2.4 or above\nUpgrade to FortiRecorder version 7.0.6 or above\nUpgrade to FortiRecorder version 6.4.6 or above\nUpgrade to FortiVoice version 7.2.1 or above\nUpgrade to FortiVoice version 7.0.7 or above\nUpgrade to FortiVoice version 6.4.11 or above\nUpgrade to FortiMail version 7.6.3 or above\nUpgrade to FortiMail version 7.4.5 or above\nUpgrade to FortiMail version 7.2.8 or above\nUpgrade to FortiMail version 7.0.9 or above"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "6abe59d8-c742-4dff-8ce8-9b0ca1073da8",
    "assignerShortName": "fortinet",
    "cveId": "CVE-2025-32756",
    "datePublished": "2025-05-13T14:46:44.208Z",
    "dateReserved": "2025-04-10T08:12:12.347Z",
    "dateUpdated": "2026-02-26T18:28:36.454Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}