Page generated: 08 Nov 2026, 09:59 UTC
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CVE-2026-21643

An improper neutralization of special elements used in an sql command ('sql injection') vulnerability in Fortinet FortiClientEMS 7.4.4 may allow an unauthenticated attacker to execute unauthorized code or commands via specifically crafted HTTP requests.

CVSS 9.1 (CRITICAL) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE
0.0/10
REALITY · THREAT PRIORITY
8.9/10
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: 97.73%: +0.49

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

Sources: 25 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

watchTowr
Press · 20 Sep 2026, 14:03 · Fortinet FortiClient EMS Zero-Day: CVE-2026-35616 (Active Exploitation Underway) - watchTowr
Rescana
Press · 19 May 2026, 07:00 · Critical RCE, SQL Injection, and Privilege Escalation Vulnerabilities Affecting Ivanti Endpoint Manager, Fortinet FortiClient EMS (CVE-2026-21643), SAP, VMware, and n8n: CVE Analysis, Exploitation, and Patch Guidance - Rescana
CyberSecurityNews
Press · 14 Apr 2026, 07:00 · CISA Warns of Fortinet SQL Injection Vulnerability Actively Exploited in Attacks - CyberSecurityNews
The Hacker News
Press · 14 Apr 2026, 07:00 · CISA Adds 6 Known Exploited Flaws in Fortinet, Microsoft, and Adobe Software - The Hacker News
Arctic Wolf
Press · 06 Apr 2026, 23:31 · CVE-2026-35616: Fortinet Releases Hotfix for Critical Exploited Vulnerability in FortiClient EMS - Arctic Wolf
See all 25 source documents
Cybersecurity Dive
Press · 06 Apr 2026, 07:00 · Critical flaw in FortiClient EMS under exploitation - Cybersecurity Dive
CyberSecurityNews
Press · 06 Apr 2026, 07:00 · 2,000+ FortiClient EMS Instances Exposed Online Amid Active RCE Vulnerability Exploits in the Wild - CyberSecurityNews
The Register
Press · 06 Apr 2026, 07:00 · Attackers exploited this critical FortiClient EMS bug as a 0-day - The Register
CyberScoop
Press · 06 Apr 2026, 07:00 · Fortinet customers confront actively exploited zero-day, with a full patch still pending - CyberScoop
The Hacker News
Press · 05 Apr 2026, 07:00 · Fortinet Patches Actively Exploited CVE-2026-35616 in FortiClient EMS - The Hacker News
Arctic Wolf
Press · 04 Apr 2026, 07:00 · CVE-2026-35616 - Arctic Wolf
SC Media
Press · 31 Mar 2026, 07:00 · Critical Fortinet FortiClient EMS vulnerability under attack - SC Media
SecurityWeek
Press · 31 Mar 2026, 07:00 · Exploitation of Critical Fortinet FortiClient EMS Flaw Begins - SecurityWeek
The Hacker News
Press · 30 Mar 2026, 07:00 · ⚡ Weekly Recap: Telecom Sleeper Cells, LLM Jailbreaks, Apple Forces U.K. Age Checks and More - The Hacker News
GBHackers News
Press · 30 Mar 2026, 07:00 · Critical Fortinet FortiClient EMS Vulnerability Actively Exploited in Attacks - GBHackers News
Help Net Security
Press · 30 Mar 2026, 07:00 · Critical Fortinet FortiClient EMS bug under active attack (CVE-2026-21643) - Help Net Security
CSO Online
Press · 30 Mar 2026, 07:00 · Fortinet hit by another exploited cybersecurity flaw - CSO Online
BleepingComputer
Press · 30 Mar 2026, 07:00 · Critical Fortinet Forticlient EMS flaw now exploited in attacks - BleepingComputer
CyberSecurityNews
Press · 18 Mar 2026, 07:00 · Critical FortiClient SQL Injection Vulnerability Enables Arbitrary Database Access - CyberSecurityNews
SOC Prime
Press · 10 Feb 2026, 08:00 · CVE-2026-21643: Critical FortiClient EMS Vulnerability Enables Unauthenticated Remote Code Execution - SOC Prime
Hong Kong Computer Emergency Response Team Coordination Centre
Press · 10 Feb 2026, 08:00 · Fortinet FortiClientEMS Remote Code Execution Vulnerability - Hong Kong Computer Emergency Response Team Coordination Centre
Arctic Wolf
Press · 09 Feb 2026, 22:17 · CVE-2026-21643: Critical SQL Injection in FortiClientEMS - Arctic Wolf
Cyber Press
Press · 09 Feb 2026, 08:00 · Critical FortiClient EMS Vulnerability Allows Remote Malicious Code Execution - Cyber Press
GBHackers News
Press · 09 Feb 2026, 08:00 · Critical Fortinet FortiClient EMS Vulnerability Allows Remote Code Execution - GBHackers News
CyberSecurityNews
Press · 09 Feb 2026, 08:00 · Critical FortiClientEMS Vulnerability Let Attackers Execute Malicious Code Remotely - 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 8.9 (2026-11-02 15:14). The curve appears once the score changes.

Public exploit evidence

1

Public exploit entries / repo candidates

See 1 repos with metrics
RepositoryStarsForksLanguageUpdated
alirezac0/CVE-2026-2164350Python27 Mar 2026, 19:20
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 97.7%
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 14:00:01.230559+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
Published
06 Feb 2026, 08:24
First press mention
09 Feb 2026, 08:00
Added to the CISA KEV catalog
13 Apr 2026, 00:00
Latest press mention
20 Sep 2026, 14:03
Score calculated
05 Nov 2026, 14:00
PoCs on GitHub
1 repositories