CVE-2024-21762

Name: CVE-2024-21762
Creator: NVD / NIST
Published: 2024-02-09T09:15:08.087+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10Actively ExploitedEPSS 80.84%

Last modified Jun 17, 2026

CVE-2024-21762 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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. CISA has confirmed active exploitation in the wild. EPSS estimates a 80.84% chance of exploitation in the next 30 days.

Description

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

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

80.84%

99.6th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by Feb 16, 2024.

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Fortinet	Fortiproxy	>= 1.0.0, < 2.0.14
Fortinet	Fortiproxy	>= 7.0.0, < 7.0.15
Fortinet	Fortiproxy	>= 7.2.0, < 7.2.9
Fortinet	Fortiproxy	>= 7.4.0, < 7.4.3
Fortinet	Fortios	>= 6.0.0, < 6.0.18
Fortinet	Fortios	>= 6.2.0, < 6.2.16
Fortinet	Fortios	>= 6.4.0, < 6.4.15
Fortinet	Fortios	>= 7.0.0, < 7.0.14
Fortinet	Fortios	>= 7.2.0, < 7.2.7
Fortinet	Fortios	>= 7.4.0, < 7.4.3

References

https://fortiguard.com/psirt/FG-IR-24-015Vendor Advisory
https://fortiguard.com/psirt/FG-IR-24-015Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-21762US Government Resource

Timeline

Published: Feb 9, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2024-21762?

How severe is CVE-2024-21762?

CVE-2024-21762 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 80.84% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.

How do I fix CVE-2024-21762?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-21762?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST