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No exploitation reportedFix available

CVE-2025-53679

No exploitation reported by the sources we read.

  • Published2025-12-09
  • Fixed in5.0.3 · 4.4.8
  • WeaknessCWE-78

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2025-12-0918:15CVE publishedNVD
  2. 2026-10-2319:23EPSS crossed 10 %FIRST EPSS

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2025-53679?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2025-53679?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Fortinet fortisandbox
BranchAffectedFixed in
5.0≥ 5.0.0, < 5.0.35.0.3
4.x≥ 4.0.0, < 4.4.84.4.8
Fortinet fortisandbox cloud
BranchAffectedFixed in
23.x≥ 23.1.4245, < 23.4.437423.4.4374
24.1= 24.1.4436no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

  1. Update Fortinet fortisandbox to 5.0.3 · 4.4.8

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

Sources

  • NVDCVE recordread 2026-10-23
  • CISA-ADPSSVC decisionnone2025-12-10
  • OpenCVESSVC decisionnone—
  • CNACVSS 3.17.2read 2026-10-23
  • CNAweakness (CWE)CWE-78read 2026-10-23
  • FIRST EPSSEPSS score12.2 %read 2026-10-23

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Published
2025-12-09
Last Modified
2026-10-08
NVD status
Analyzed

Frequently asked questions

What is CVE-2025-53679?

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.

Is CVE-2025-53679 actively exploited?

Active exploitation of CVE-2025-53679 has not been confirmed. Its EPSS score was 12.2% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2025-53679?

CVE-2025-53679 has a CVSS v3 base score of 7.2 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

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