Is CVE-2025-52436 being actively exploited?

CVE-2025-52436 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2025-52436?

CVE-2025-52436 has a CVSS 3.1 base score of 8.8 (HIGH).

CVE-2025-52436

HIGH · CVSS 8.8EPSS 7.3%EU EUVD

An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability [CWE-79] vulnerability in Fortinet FortiSandbox 5.0.0 through 5.0.1, FortiSandbox 4.4.0 through 4.4.7, FortiSandbox 4.2 all versions, FortiSandbox 4.0 all versions may allow an unauthenticated attacker to execute commands via crafted requests.

Key facts

CVSS score: 8.8 (v3.1)
Severity: HIGH
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-79
EPSS score: 7.3% (94th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2025-206928)
Published: February 10, 2026
NVD last modified: June 17, 2026
Status: Analyzed

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2025-206928 in the EU Vulnerability Database. Last updated in EUVD on February 26, 2026.

View on the EU Vulnerability Database

Affected products

fortinet / fortisandbox

Certified products that may be affected

1 FIPS 140 or Common Criteria certified product, from automated matching by sec-certs.org.

FortiSandbox 4.4 - Fortinet, Inc. - Common Criteria CCEVS-VR-VID-11636-2025 - active

References

https://fortiguard.fortinet.com/psirt/FG-IR-25-093(Vendor Advisory)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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