Is CVE-2025-53949 being actively exploited?

CVE-2025-53949 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2025-53949?

CVE-2025-53949 has a CVSS 3.1 base score of 7.2 (HIGH).

CVE-2025-53949

HIGH · CVSS 7.2EPSS 17.2%EU EUVD

An Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability [CWE-78] vulnerability in Fortinet FortiSandbox 5.0.0 through 5.0.2, FortiSandbox 4.4.0 through 4.4.7, FortiSandbox 4.2 all versions, FortiSandbox 4.0 all versions may allow an authenticated attacker to execute unauthorized code on the underlying system via crafted HTTP requests.

Key facts

CVSS score: 7.2 (v3.1)
Severity: HIGH
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-78
EPSS score: 17.2% (97th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2025-202270)
Published: December 9, 2025
NVD last modified: October 8, 2026
Status: Analyzed

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2025-202270 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-25-479(Vendor Advisory)

Last updated October 10, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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