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CVE-2024-21762

A out-of-bounds write in Fortinet FortiOS versions 7.4.0 through 7.4.2, 7.2.0 through 7.2.6, 7.0.0 through 7.0.13, 6.4.0 through 6.4.14, 6.2.0 through 6.2.15, 6.0.0 through 6.0.17, FortiProxy versi...

Published: Feb 9, 2024Updated: Oct 24, 2025 Sources: CVE List NVD BDU csaf
NVD MITRE
9.8CVSS
CRITICAL

A out-of-bounds write in Fortinet FortiOS versions 7.4.0 through 7.4.2, 7.2.0 through 7.2.6, 7.0.0 through 7.0.13, 6.4.0 through 6.4.14, 6.2.0 through 6.2.15, 6.0.0 through 6.0.17, FortiProxy versions 7.4.0 through 7.4.2, 7.2.0 through 7.2.8, 7.0.0 through 7.0.14, 2.0.0 through 2.0.13, 1.2.0 through 1.2.13, 1.1.0 through 1.1.6, 1.0.0 through 1.0.7 allows attacker to execute unauthorized code or commands via specifically crafted requests

EPSS Score
92.7%
Top 0.2%
CISA KEV
Active Exploitation
Since Feb 9, 2024
Exploits
No Known Exploits
Remediation
Patch Available

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High

Weaknesses

CWE-787

Affected Products

FortiProxy
Fortinet
FortiOS
Fortinet
FortiProxy
Fortinet Inc.
FortiOS
Fortinet Inc.
fortiproxy
fortinet
and 1 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

CISA Known Exploited Vulnerability
Added to KEV:Feb 9, 2024
Remediation due:Feb 16, 2024
Ransomware:Known ransomware use

Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Official Patch Available

Nuclei Scanner Templates

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MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://fortiguard.com/psirt/FG-IR-24-015
fortiguard.com
https://www.fortiguard.com/psirt/FG-IR-24-015
fortiguard.com
https://vuldb.com/?id.253258
vuldb.com
and 87 more references View all →

Timeline

Added to CISA KEV
Feb 9, 2024
Published
Feb 9, 2024
Last Updated
Oct 24, 2025
News mentions
2

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