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CVE-2025-53679VulnerabilityPublished Updated

CVE-2025-53679: Fortinet FortiSandbox · Execute unauthorized code or commands

Affects Fortinet FortiSandboxSource CVE Database V5

0

Not known to be exploited · 12% EPSS · CVSS 6.9 Medium.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 3.1 base score
6.9Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
12.2% chance of exploitation in 30 days – higher than 96% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:X/RL:O/RC:C

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 9 Dec 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.

What to do

Affected software

ProductAffectedFixed in
Fortinet FortiSandboxAffected
  • =5.0.0
  • =4.4.0
  • =4.2.1
  • =4.0.0
Fixed in–

AI-suggested

Organizations should immediately verify their FortiSandbox versions and prioritize upgrading to patched versions once Fortinet releases fixes. In the interim, restrict network access to FortiSandbox management interfaces to trusted administrators only, using network segmentation and firewall rules. Implement strong authentication mechanisms, including multi-factor authentication, to reduce the risk of privilege compromise. Monitor FortiSandbox logs and network traffic for unusual HTTP/HTTPS requests indicative of exploitation attempts. Employ intrusion detection/prevention systems to detect command injection patterns targeting FortiSandbox. Regularly audit user privileges and remove unnecessary administrative access to minimize the attack surface. Consider deploying virtual patching or web application firewalls with custom rules to block suspicious payloads targeting this vulnerability. Maintain up-to-date backups of FortiSandbox configurations and data to enable recovery in case of compromise. Engage with Fortinet support and subscribe to security advisories for timely updates and patches.

Description

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, FortiSandbox Cloud 24.1, FortiSandbox Cloud 23 all versions allows a remote privileged attacker to execute unauthorized code or commands via crafted HTTP or HTTPS requests.

References

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