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CVE-2021-42757

nvd nist
Published: Dec 8, 2021Modified: Jun 17, 2026

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6.7
Vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Exploitability: 0.8 / Impact: 5.9
Source: NVD

Description

A buffer overflow [CWE-121] in the TFTP client library of FortiOS before 6.4.7 and FortiOS 7.0.0 through 7.0.2, may allow an authenticated local attacker to achieve arbitrary code execution via specially crafted command line arguments.

Affected (30)

13 products
Fortiadc
Fortianalyzer
Fortimail
Fortimanager
Fortindr
Fortios
Fortios 6k7k
Fortiportal
Fortiproxy
Fortirecorder Firmware
Fortiswitch
Fortivoice
Fortiweb
Configuration A
30 vulnerable
Vulnerable SoftwareAffected Versions
Fortinet
From 5.0.0 to 6.1.5
From 6.2.0 to 6.2.2
Fortinet
From 6.0.0 to 6.4.7
From 7.0.0 to 7.0.2
Fortinet
From 5.4.0 to 6.2.7
From 6.4.0 to 6.4.6
From 7.0.0 to 7.0.2
Fortinet
From 6.0.0 to 6.4.7
From 7.0.0 to 7.0.2
From 1.1.0 to 1.5.2
Fortinet
From 5.0.0 to 6.0.13
From 6.2.0 to 6.2.9
From 6.4.0 to 6.4.7
From 7.0.0 to 7.0.2
Fortinet
Up to 6.2.8
Version 6.4.2
Version 6.4.6
From 5.0.0 to 6.0.10
Fortinet
From 1.0.0 to 2.0.7
Version 7.0.0
Version 7.0.1
Fortinet
From 2.6.0 to 6.0.10
From 6.4.0 to 6.4.2
Fortinet
From 6.0.0 to 6.4.9
From 7.0.0 to 7.0.3
Fortinet
From 6.0.0 to 6.0.10
From 6.4.0 to 6.4.4
Fortinet
From 5.0.0 to 6.3.16
Version 6.4.0
Version 6.4.1

References (2)

Source: psirt@fortinet.com
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory

Timeline

No history available yet.