Is CVE-2024-21762 actively exploited?

Yes. KEV Intelligence tracks CVE-2024-21762 as a known exploited vulnerability. Confidence is confirmed.

What exploitation activity has KEV Intelligence observed?

KEV Intelligence has not yet recorded sensor-observed exploitation attempts for CVE-2024-21762. Our sensors continue to monitor for activity targeting this CVE.

Which versions are affected?

CVE-2024-21762 affects Fortinet FortiProxy, FortiOS. KEV Intelligence lists 22 version rows; examples include 1.0.0 to < 2.0.14, 7.0.0 to < 7.0.15, and 7.2.0 to < 7.2.9.

Yes. CVE-2024-21762 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

CVE-2024-21762 Exploited in the Wild — FortiProxy, FortiOS

Q: How should organizations remediate it?

Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.

Q: Is it in CISA KEV?

Yes. CVE-2024-21762 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

CVE-2024-21762 is an unauthenticated vulnerability affecting Fortinet FortiProxy, FortiOS. A out-of-bounds write in Fortinet FortiOS versions 7.4.0 through 7.4.2, 7.2.0 through 7.2.6, 7.0.0 through 7.0.13, 6.4.0...

Is it exploited?

Yes. KEV Intelligence tracks this CVE as a known exploited vulnerability. Confidence is confirmed.

Who is affected?

Fortinet / FortiProxy affected before 2.0.14.

What should we do?

Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.

Overview

FortiProxy

A out-of-bounds write in Fortinet FortiOS versions 7.4.0 through 7.4.2, 7.2.0 through 7.2.6, 7.0.0 through 7.0.13, 6.4.0 through 6.4.14, 6.2.0 through 6.2.15, 6.0.0 through 6.0.17, FortiProxy versions 7.4.0 through 7.4.2, 7.2.0 through 7.2.8, 7.0.0 through 7.0.14, 2.0.0 through 2.0.13, 1.2.0 through 1.2.13, 1.1.0 through 1.1.6, 1.0.0 through 1.0.7 allows attacker to execute unauthorized code or commands via specifically crafted requests

Vendor Product Affected Status

fortinet fortiproxy Before 2.0.14 Affected

fortinet fortiproxy Before 7.0.15 Affected

fortinet fortiproxy Before 7.2.9 Affected

fortinet fortiproxy Before 7.4.3 Affected

fortinet fortios Before 6.2.16 Affected

fortinet fortios Before 6.4.15 Affected

fortinet fortios Before 7.0.14 Affected

fortinet fortios Before 7.2.7 Affected

fortinet fortios Before 7.4.3 Affected

Fortinet FortiProxy Through 7.4.2 Affected

Fortinet FortiProxy Through 7.2.8 Affected

Fortinet FortiProxy Through 7.0.14 Affected

Fortinet FortiProxy Through 2.0.13 Affected

Fortinet FortiProxy Through 1.2.13 Affected

Fortinet FortiProxy Through 1.1.6 Affected

Fortinet FortiProxy Through 1.0.7 Affected

Fortinet FortiOS Through 7.4.2 Affected

Fortinet FortiOS Through 7.2.6 Affected

Fortinet FortiOS Through 7.0.13 Affected

Fortinet FortiOS Through 6.4.14 Affected

Fortinet FortiOS Through 6.2.15 Affected

Fortinet FortiOS Through 6.0.17 Affected

Published: 09 Feb 2024
Exploitation Reported: 09 Feb 2024
Attack vector: Remote
Complexity: Low
Privileges: None
User interaction: None

CVE References

CVE Record CVE.org · CVE Record https://www.cve.org/CVERecord?id=CVE-2024-21762
https://fortiguard.com/psirt/FG-IR-24-015 fortiguard.com · CVE Record https://fortiguard.com/psirt/FG-IR-24-015

Exploitation evidence

Why KEV Intelligence marks this CVE as exploited

Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.

Exploited in the wild

CISA

Recorded 09 Feb 2024

Independent exploitation attestation added to the KEV Intelligence record.

Used in malware

CISA

Recorded 02 Jun 2026

Malware families have been linked to exploitation of this CVE.

Known exploited vulnerability sources

Per-source evidence links for KEV attestations are available through the KEV Intelligence Pro API.

Learn about Pro API access

Source	Added
CISA First	2024-02-09 00:00 UTC
CVE	2026-08-04 04:41 UTC

Detection

Operational artifacts and observed signals

Make the evidence actionable in scanner, SOC, and edge-control workflows.

Observed signals

Request targets: 0
User-Agents: 0

Raw values available in Pro and Enterprise.

Scanner coverage

Nessus template detected 02 Jun 2025.

View Nessus template

Virtual patch status

No KEV Intelligence virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.

Learn about virtual patches →

Scanner Artifacts

Scanner and exploit-framework references linked to this CVE.

Scanner	Reference	Detected
Nessus	https://www.tenable.com/plugins/nessus/114795	02 Jun 2025

Risk and context

Severity, weaknesses, and research context

CVSS v3.1

9.6 Critical

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

EPSS

84.3%

Weaknesses

Out-of-bounds Write CWE-787

Recent mention · Tenable Blog

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Fortinet has observed threat actors exploiting CVE-2025-32756, a critical zero-day arbitrary code execution vulnerability which affects multiple Fortinet products including FortiVoice, FortiMail, FortiNDR, FortiRecorder and FortiCamera.BackgroundOn May 13th, Fortinet published...

Read full advisory

All Mentions

Recent mention · Tenable Blog

CVE-2025-32756: Zero-Day Vulnerability in Multiple Fortinet Products Exploited in the Wild

Tenable Blog · 14 May 2025

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Recent mention · Tenable Blog

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Recent mention · Tenable Blog

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Tenable Blog · 25 Apr 2025

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Timeline

From disclosure to observed exploitation

04 Aug 2026
KEV confirmed by CVE

Exploitation attested by an external source
02 Jun 2026
First public exploitation report

Exploit observed in malware
02 Jun 2025
Nessus plugin available

Scanner coverage available
09 Feb 2024
CVE published

Vulnerability disclosed publicly
09 Feb 2024
Added to CISA KEV

Listed in the CISA Known Exploited Vulnerabilities catalog
02 Jan 2024
CVE ID reserved

Identifier reserved by the CNA

Pro API

Automate this intelligence

Confidence, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.

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Evidence confidence and provenance
First-party sensor telemetry
PoC and scanner references
Affected versions and enrichment
Automation-ready JSON delivery

GET /api/v2/pro/kevs/CVE-2024-21762

Free JSON includes basic KEV fields

{
  "cve_id": "CVE-2024-21762",
  "confidence": "Confirmed",
  "cvss_score": 9.6,
  "cvss_estimated": false,
  "epss_score": 0.84285,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": false
  },
  "sensor_telemetry": { "attempts": 0, "sensors": 0 }
}

CVE-2024-21762

What security teams need to know first

FortiProxy

Tags

CVE References

Why KEV Intelligence marks this CVE as exploited

Exploited in the wild

Used in malware

Known exploited vulnerability sources

Operational artifacts and observed signals

Observed signals

Scanner coverage

Virtual patch status

Scanner Artifacts

Severity, weaknesses, and research context

Weaknesses

CVE-2025-32756: Zero-Day Vulnerability in Multiple Fortinet Products Exploited in the Wild

All Mentions

From disclosure to observed exploitation

KEV confirmed by CVE

First public exploitation report

Nessus plugin available

CVE published

Added to CISA KEV

CVE ID reserved

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