How severe is CVE-2024-21762?

CVE-2024-21762 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2024-21762 being actively exploited?

Yes. CVE-2024-21762 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2024-02-09, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2024-21762?

CVE-2024-21762 primarily affects Fortinet Fortiproxy. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2024-21762?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2024-21762 have an EU (EUVD) identifier?

Yes. CVE-2024-21762 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-19376. It is also flagged as exploited in the EUVD (since 2024-02-09).

When was CVE-2024-21762 published?

CVE-2024-21762 was published on 2024-02-09 and last updated on 2026-08-04.

CVE-2024-21762

CVE-2024-21762 is a critical-severity vulnerability in Fortinet Fortiproxy with a CVSS 3.x base score of 9.8. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2024-02-09). The underlying weakness is classified as CWE-787.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 84% (100th percentile)
Actively exploited: Yes — listed in CISA KEV (added 2024-02-09)
EU (EUVD) id: EUVD-2024-19376
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2024-02-09)
Weakness: CWE-787
Affected product: Fortinet Fortiproxy
Published: 2024-02-09
Last modified: 2026-08-04

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

Frequently asked questions

What is CVE-2024-21762?: 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
How severe is CVE-2024-21762?: CVE-2024-21762 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2024-21762 being actively exploited?: Yes. CVE-2024-21762 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2024-02-09, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2024-21762?: CVE-2024-21762 primarily affects Fortinet Fortiproxy. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2024-21762?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2024-21762 have an EU (EUVD) identifier?: Yes. CVE-2024-21762 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-19376. It is also flagged as exploited in the EUVD (since 2024-02-09).
When was CVE-2024-21762 published?: CVE-2024-21762 was published on 2024-02-09 and last updated on 2026-08-04.

References

Affected products (2)

cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*

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