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No exploitation reportedAwaiting NVD analysis

CVE-2026-84387

No exploitation reported by the sources we read.

  • Published2026-09-08
  • WeaknessCWE-77

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 a Command ('Command Injection') vulnerability [CWE-77] vulnerability in Fortinet FortiSandbox 5.2.0, FortiSandbox 5.0.0 through 5.0.6, FortiSandbox 4.4.0 through 4.4.9, FortiSandbox 4.2 all versions may allow a privileged attacker to execute unauthorized code or commands via crafted HTTP requests.

Timeline

dates in UTC
  1. 2026-09-0817:18CVE publishedNVD

Versions per branch

Products declared by the CNA

As fortinet, the CNA that assigned this CVE, declared them in the CVE record; versions as written. NVD lists no product for this CVE yet: this is the only product data so far.

  • Fortinet FortiSandboxother versions: not affected
    Affected
    • = 5.2.0no fix stated
    • ≥ 5.0.0, ≤ 5.0.6no fix statedsemver
    • ≥ 4.4.0, ≤ 4.4.9no fix statedsemver
    • ≥ 4.2.1, ≤ 4.2.8no fix statedsemver

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-10-29

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2026-84387 yet.

Full record on NVD

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

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
2026-09-08
Last Modified
2026-10-29
NVD status
Awaiting Analysis
GitHub Advisory
GHSA-jq5j-gp3m-3mrh

Frequently asked questions

What is CVE-2026-84387?

An Improper Neutralization of Special Elements used in a Command ('Command Injection') vulnerability [CWE-77] vulnerability in Fortinet FortiSandbox 5.2.0, FortiSandbox 5.0.0 through 5.0.6, FortiSandbox 4.4.0 through 4.4.9, FortiSandbox 4.2 all versions may allow a privileged attacker to execute unauthorized code or commands via crafted HTTP requests.

Is CVE-2026-84387 actively exploited?

Active exploitation of CVE-2026-84387 has not been confirmed. Its EPSS score was 1.6% on 2026-11-09, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-84387?

CVE-2026-84387 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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