CVE-2025-53679Network attack vector

Privileged command execution via backup reachability test

Published Dec 9, 2025 · Updated Feb 26, 2026

OS command injection in Fortinet FortiSandbox and FortiSandbox Cloud allows remote authenticated users to execute commands via crafted HTTPS requests. The GUI backup option's test_ip_reachbility request path passes attacker-controlled data to an operating-system command without neutralizing command elements. Administrative privileges are required, and successful exploitation grants command execution with appliance-level confidentiality, integrity, and availability consequences.

CVSS severity7.2
High
EPSS probability12.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in Fortinet FortiSandbox and FortiSandbox Cloud allows remote authenticated users to execute commands via crafted HTTPS requests. The GUI backup option's test_ip_reachbility request path passes attacker-controlled data to an operating-system command without neutralizing command elements. Administrative privileges are required, and successful exploitation grants command execution with appliance-level confidentiality, integrity, and availability consequences.

The record

CVE
CVE-2025-53679
Published
Dec 9, 2025
Updated
Feb 26, 2026
Vendor
Fortinet
Product
FortiSandbox Cloud
Classifications
CWE-78, T1059
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Dec 9, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 26, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=23.4
  2. Affected versionversion=24.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Fortinet · FortiSandbox Cloudversion=23.4; version=24.1
Fortinet · FortiSandboxversion=4.0.0 <=4.0.6; version=4.2.1 <=4.2.8; version=4.4.0 <=4.4.7; version=5.0.0 <=5.0.2

Published CVSS scores

6.9FortinetCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:X/RL:O/RC:C
7.2NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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