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CVE-2024-21762

A out-of-bounds write vulnerability in Fortinet FortiOS 7.4.0 through 7.4.2, FortiOS 7.2.0 through 7.2.6, FortiOS 7.0.0 through 7.0.13, FortiOS 6.4.0 through 6.4.14, FortiOS 6.2.0 through 6.2.15, FortiOS 6.0 all versions, FortiProxy 7.4.0 through 7.4.2, FortiProxy 7.2.0 through 7…

Read full description
A out-of-bounds write vulnerability in Fortinet FortiOS 7.4.0 through 7.4.2, FortiOS 7.2.0 through 7.2.6, FortiOS 7.0.0 through 7.0.13, FortiOS 6.4.0 through 6.4.14, FortiOS 6.2.0 through 6.2.15, FortiOS 6.0 all versions, FortiProxy 7.4.0 through 7.4.2, FortiProxy 7.2.0 through 7.2.8, FortiProxy 7.0.0 through 7.0.14, FortiProxy 2.0.0 through 2.0.13, FortiProxy 01.02 all versions, FortiProxy 1.2 all versions, FortiProxy 01.01 all versions, FortiProxy 1.1 all versions, FortiProxy 01.00 all versions allows attacker to execute unauthorized code or commands via specifically crafted requests
CVSS 9.6 (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 9.6: +1.44
  • Fresh EPSS: 84.59%: +0.42

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

Sources: 19 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

GBHackers News
Press · 22 Jan 2026, 08:00 · Active Exploitation Of Fortinet SSO Flaw Targets Firewalls For Admin Takeover - GBHackers News
Huntress
Press · 11 Jul 2025, 07:00 · CVE-2024-21762 Vulnerability: Analysis, Impact, Mitigation - Huntress
Infosecurity Magazine
Press · 03 Jul 2025, 07:00 · Automation and Vulnerability Exploitation Drive Mass Ransomware Breaches - Infosecurity Magazine
SC Media
Press · 09 Jun 2025, 07:00 · New Qilin ransomware attacks involve Fortinet exploits - SC Media
BleepingComputer
Press · 06 Jun 2025, 07:00 · Critical Fortinet flaws now exploited in Qilin ransomware attacks - BleepingComputer
See all 19 source documents
The Hacker News
Press · 11 Apr 2025, 07:00 · Fortinet Warns Attackers Retain FortiGate Access Post-Patching via SSL-VPN Symlink Exploit - The Hacker News
Rapid7
Press · 16 Jan 2025, 08:00 · Fortinet Firewalls Hit with New Zero-Day Attack, Older Data Leak - Rapid7
Cybersecurity Dive
Press · 14 Oct 2024, 07:00 · Critical CVE in 4 Fortinet products actively exploited - Cybersecurity Dive
cyfirma
Press · 20 Mar 2024, 07:00 · FortiOS/FortiProxy (CVE-2024-21762)- Vulnerability Analysis and Exploitation - cyfirma
CyberSecurityNews
Press · 10 Mar 2024, 08:00 · Vulnerability in 150K+ Fortinet Devices Let Hackers Execute Arbitary Code Remotely - CyberSecurityNews
GreyNoise
Press · 08 Mar 2024, 08:00 · Hunting for Fortinet's CVE-2024-21762 - GreyNoise
Cybersecurity Dive
Press · 12 Feb 2024, 08:00 · Attackers hit more networking gear, this time a critical Fortinet CVE - Cybersecurity Dive
wiz.io
Press · 12 Feb 2024, 08:00 · Exploitation in the wild - wiz.io
Rapid7
Press · 12 Feb 2024, 08:00 · Critical Fortinet FortiOS CVE-2024-21762 Exploited - Rapid7
Hackread
Press · 10 Feb 2024, 08:00 · CISA and Fortinet Warns of New FortiOS Zero-Day Flaws - Hackread
The Hacker News
Press · 09 Feb 2024, 08:00 · Fortinet Warns of Critical FortiOS SSL VPN Flaw Likely Under Active Exploitation - The Hacker News
CERT-FR
Technical advisory · 09 Feb 2024, 00:00 · [MàJ] Vulnérabilité dans Fortinet FortiOS (09 février 2024)
CERT-FR
Press · 09 Feb 2024, 00:00 · [MàJ] Vulnérabilité dans Fortinet FortiOS (09 février 2024)
Arctic Wolf
Press · 08 Feb 2024, 08:00 · Recommendations for CVE-2024-21762 and CVE-2024-23113 - Arctic Wolf

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 15:13). The curve appears once the score changes.

Public exploit evidence

4

Public exploit entries / repo candidates

See 4 repos with metrics
RepositoryStarsForksLanguageUpdated
r4p3c4/CVE-2024-21762-Exploit-PoC-Fortinet-SSL-VPN-Check163Python29 Jun 2025, 17:05
d0rb/CVE-2024-21762121Python17 Mar 2024, 09:20
abrewer251/CVE-2024-21762_FortiNet_PoC42Python22 May 2025, 16:30
CrackerCat/cve-2024-21762-poc01—24 Nov 2024, 08:07
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 9.6; EPSS 84.6%
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 13:59:08.088796+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
First press mention
08 Feb 2024, 08:00
Added to the CISA KEV catalog
09 Feb 2024, 00:00
Published
09 Feb 2024, 08:14
Latest press mention
22 Jan 2026, 08:00
Score calculated
05 Nov 2026, 13:59
PoCs on GitHub
4 repositories
Source: CVE List V5 · CISA KEV · FIRST EPSS · GitHub · RSSVulnRadar