How severe is CVE-2024-21759?

CVE-2024-21759 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2024-21759 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-21759?

CVE-2024-21759 primarily affects Fortinet Fortiportal. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2024-21759?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2024-21759 have an EU (EUVD) identifier?

Yes. CVE-2024-21759 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-19373.

When was CVE-2024-21759 published?

CVE-2024-21759 was published on 2024-07-09 and last updated on 2026-06-17.

CVE-2024-21759

CVE-2024-21759 is a medium-severity vulnerability in Fortinet Fortiportal with a CVSS 3.x base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-639.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
EPSS exploit prediction: 0% (21st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-19373
Weakness: CWE-639
Affected product: Fortinet Fortiportal
Published: 2024-07-09
Last modified: 2026-06-17

Description

An authorization bypass through user-controlled key in Fortinet FortiPortal version 7.2.0, and versions 7.0.0 through 7.0.6 allows attacker to view unauthorized resources via HTTP or HTTPS requests.

Frequently asked questions

What is CVE-2024-21759?: An authorization bypass through user-controlled key in Fortinet FortiPortal version 7.2.0, and versions 7.0.0 through 7.0.6 allows attacker to view unauthorized resources via HTTP or HTTPS requests.
How severe is CVE-2024-21759?: CVE-2024-21759 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2024-21759 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-21759?: CVE-2024-21759 primarily affects Fortinet Fortiportal. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2024-21759?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-21759 have an EU (EUVD) identifier?: Yes. CVE-2024-21759 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-19373.
When was CVE-2024-21759 published?: CVE-2024-21759 was published on 2024-07-09 and last updated on 2026-06-17.

References

https://fortiguard.fortinet.com/psirt/FG-IR-24-011

Affected products (2)

cpe:2.3:a:fortinet:fortiportal:*:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiportal:7.2.0:*:*:*:*:*:*:*

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