Page generated: 08 Nov 2026, 14:23 UTC
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CVE-2026-39808

A improper neutralization of special elements used in an os command ('os command injection') vulnerability in Fortinet FortiSandbox 4.4.0 through 4.4.8 may allow attacker to execute unauthorized code or commands via <insert attack vector here>

CVSS 9.1 (CRITICAL) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE
0.0/10
REALITY · THREAT PRIORITY
8.8/10
General review priority; not probability

Evidence confidence: Exploitation recorded

Why this priority?
  • Recorded exploitation baseline: +7.00
  • Technical severity: CVSS 9.1: +1.36
  • Fresh EPSS: 93.19%: +0.47

General review priority, not probability, victim count or asset-specific risk. A range covers missing CVSS/EPSS inputs within the current evidence state.

Sources: 21 documents and public datasets.

Hype components

Headline sample (25%)
0/100
Press, 30 days (60%)
0/100
Grounded branding (15%)
0/100
HYPE TOTAL0/100

Sources and documents

Arctic Wolf
Press · 29 Jul 2026, 16:26 · Recommendations for CVE-2026-39808 - Arctic Wolf
BleepingComputer
Press · 17 Jul 2026, 07:00 · CISA urges immediate action on actively exploited Fortinet flaws - BleepingComputer
The Register
Press · 17 Jul 2026, 07:00 · Attackers target critical FortiSandbox flaws as CISA issues patch order - The Register
The Hacker News
Press · 17 Jul 2026, 07:00 · CISA Adds Exploited SharePoint RCE Zero-Day CVE-2026-58644 to KEV - The Hacker News
Infosecurity Magazine
Press · 17 Jul 2026, 07:00 · CISA Mandates Urgent Patch for Actively Exploited Critical Fortinet Vulnerabilities - Infosecurity Magazine
See all 21 source documents
SecurityWeek
Press · 17 Jun 2026, 07:00 · 3 Recently Patched Fortinet FortiSandbox Vulnerabilities in Hacker Crosshairs - SecurityWeek
CyberScoop
Press · 17 Jun 2026, 07:00 · Attackers hit pair of critical Fortinet vulnerabilities the vendor disclosed in April - CyberScoop
The Hacker News
Press · 16 Jun 2026, 07:00 · Attackers Exploit Three Fortinet FortiSandbox Flaws, One Patched Last Week - The Hacker News
Help Net Security
Press · 16 Jun 2026, 07:00 · Attackers are exploiting FortiSandbox vulnerabilities - Help Net Security
CyberSecurityNews
Press · 16 Jun 2026, 07:00 · Critical Fortinet FortiSandbox Vulnerabilities Actively Exploited in Attacks - CyberSecurityNews
LinkedIn
Press · 16 Jun 2026, 07:00 · Threat Actors Actively Exploit Multiple Critical Fortinet FortiSandbox Vulnerabilities - LinkedIn
Cybersecurity Dive
Press · 16 Jun 2026, 07:00 · Critical vulnerabilities in Fortinet FortiSandbox are under exploitation - Cybersecurity Dive
BleepingComputer
Press · 16 Jun 2026, 07:00 · Critical Fortinet FortiSandbox flaws now exploited in attacks - BleepingComputer
CyberSecurityNews
Press · 18 Apr 2026, 07:00 · PoC Exploit Released for FortiSandbox Vulnerability that Allows Attacker to Execute Commands - CyberSecurityNews
Field Effect
Press · 17 Apr 2026, 07:00 · Fortinet fixes critical FortiSandbox vulnerabilities - Field Effect
Help Net Security
Press · 16 Apr 2026, 07:00 · Fortinet fixes critical FortiSandbox vulnerabilities (CVE-2026-39813, CVE-2026-39808) - Help Net Security
SecurityWeek
Press · 15 Apr 2026, 07:00 · Fortinet Patches Critical FortiSandbox Vulnerabilities - SecurityWeek
The Hacker News
Press · 15 Apr 2026, 07:00 · April Patch Tuesday Fixes Critical Flaws Across SAP, Adobe, Microsoft, Fortinet, and More - The Hacker News
CCB Belgium
Press · 15 Apr 2026, 07:00 · Warning: Remote Code Execution & Privilege Escalation in Fortinet FortiSandbox Patch Immediately! - CCB Belgium
CyberSecurityNews
Press · 14 Apr 2026, 07:00 · Fortinet Patches 11 Vulnerabilities Across FortiSandbox, FortiOS, FortiAnalyzer, and FortiManager - CyberSecurityNews
CyberSecurityNews
Press · 14 Apr 2026, 07:00 · Critical FortiSandbox Vulnerabilities Allow Attackers to Execute Unauthorized Commands - CyberSecurityNews

Score evolution

● Hype   ● Reality

Earlier evidence-support scores are retained in history; this chart shows only the current priority definition.

First record: hype 0.0 · reality 8.8 (2026-11-02 15:14). The curve appears once the score changes.

Public exploit evidence

2

Public exploit entries / repo candidates

See 2 repos with metrics
RepositoryStarsForksLanguageUpdated
samu-delucas/CVE-2026-3980892—15 Apr 2026, 14:30
Ghost-Bx1/Fortinet-Exploits-CVE-2026-39808-106173-10765601Python01 Nov 2026, 04:27
Evidence context and dated references

Reality is general threat/review priority, combining observed exploitation, CVSS severity and fresh EPSS. Evidence confidence is separate. This is not calibrated risk, a victim count or an asset-specific assessment. A range reflects missing numeric inputs.

Evidence in context

Confidence in exploitation evidence
Exploitation recorded
Priority basis
Recorded exploitation; CVSS 9.1; EPSS 93.2%
Attention, last 30 days
0 distinct story titles; 0 press documents; 0 publisher domains.
Technical potential
network access, no prior privileges, no user interaction.
Observed activity
Exploitation recorded in CISA KEV.
Known scale
Not quantified.
Evidence confidence basis
Trusted exploitation confirmation

Score evaluated: 2026-11-05 14:00:08.932646+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
First press mention
14 Apr 2026, 07:00
Published
14 Apr 2026, 15:38
Added to the CISA KEV catalog
16 Jul 2026, 00:00
Latest press mention
29 Jul 2026, 16:26
Score calculated
05 Nov 2026, 14:00
PoCs on GitHub
2 repositories