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CVE-2021-42757

CVE.org · Published

Historical CVEsJSONAI instructions

Record status
Published
Identifier year (not publication year)
2021
Source publication
Source updated
Imported by cveboard
Source snapshot
cve_2026-10-24_midnight_baseline ·

Plain text

CNA source text (English)

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.

Scoped product and version facts

Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.

Exploitation unknown; this catalogue does not assess exploitation.

FortiOS

Vendor
Fortinet
Product
FortiOS
Platforms
Unknown
Default status
unaffected
FortiOS · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
7.0.0affectedsemverUnavailable7.0.2None listed
6.4.0affectedsemverUnavailable6.4.7None listed
6.2.0affectedsemverUnavailable6.2.9None listed
6.0.0affectedsemverUnavailable6.0.13None listed
5.6.0affectedsemverUnavailable5.6.14None listed
5.4.0affectedsemverUnavailable5.4.13None listed
5.2.0affectedsemverUnavailable5.2.15None listed
5.0.0affectedsemverUnavailable5.0.14None listed

FortiDDoS-F

Vendor
Fortinet
Product
FortiDDoS-F
Platforms
Unknown
Default status
unaffected
FortiDDoS-F · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
6.4.0affectedsemverUnavailable6.4.1None listed
6.3.0affectedUnavailableUnavailableUnavailableNone listed
6.2.0affectedsemverUnavailable6.2.2None listed
6.1.0affectedsemverUnavailable6.1.4None listed

FortiVoice

Vendor
Fortinet
Product
FortiVoice
Platforms
Unknown
Default status
unaffected
FortiVoice · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
6.4.0affectedsemverUnavailable6.4.4None listed
6.0.0affectedsemverUnavailable6.0.10None listed

FortiProxy

Vendor
Fortinet
Product
FortiProxy
Platforms
Unknown
Default status
unaffected
FortiProxy · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
7.0.0affectedsemverUnavailable7.0.1None listed
2.0.0affectedsemverUnavailable2.0.7None listed
1.2.0affectedsemverUnavailable1.2.13None listed
1.1.0affectedsemverUnavailable1.1.6None listed
1.0.0affectedsemverUnavailable1.0.7None listed

FortiRecorder

Vendor
Fortinet
Product
FortiRecorder
Platforms
Unknown
Default status
unaffected
FortiRecorder · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
6.4.0affectedsemverUnavailable6.4.2None listed
6.0.0affectedsemverUnavailable6.0.10None listed
2.7.0affectedsemverUnavailable2.7.7None listed
2.6.0affectedsemverUnavailable2.6.3None listed

FortiPortal

Vendor
Fortinet
Product
FortiPortal
Platforms
Unknown
Default status
unaffected
FortiPortal · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
6.0.0affectedsemverUnavailable6.0.10None listed
5.3.0affectedsemverUnavailable5.3.8None listed
5.2.0affectedsemverUnavailable5.2.6None listed
5.1.0affectedsemverUnavailable5.1.2None listed
5.0.0affectedsemverUnavailable5.0.3None listed

FortiMail

Vendor
Fortinet
Product
FortiMail
Platforms
Unknown
Default status
unaffected
FortiMail · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
7.0.0affectedsemverUnavailable7.0.2None listed
6.4.0affectedsemverUnavailable6.4.6None listed
6.2.0affectedsemverUnavailable6.2.7None listed
6.0.0affectedsemverUnavailable6.0.12None listed
5.4.0affectedsemverUnavailable5.4.12None listed

FortiAnalyzer

Vendor
Fortinet
Product
FortiAnalyzer
Platforms
Unknown
Default status
unaffected
FortiAnalyzer · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
7.0.0affectedsemverUnavailable7.0.2None listed
6.4.0affectedsemverUnavailable6.4.7None listed
6.2.0affectedsemverUnavailable6.2.13None listed
6.0.0affectedsemverUnavailable6.0.12None listed

FortiNDR

Vendor
Fortinet
Product
FortiNDR
Platforms
Unknown
Default status
unaffected
FortiNDR · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
1.5.0affectedsemverUnavailable1.5.2None listed
1.4.0affectedUnavailableUnavailableUnavailableNone listed
1.3.0affectedsemverUnavailable1.3.1None listed
1.2.0affectedUnavailableUnavailableUnavailableNone listed
1.1.0affectedUnavailableUnavailableUnavailableNone listed

FortiDDoS

Vendor
Fortinet
Product
FortiDDoS
Platforms
Unknown
Default status
unaffected
FortiDDoS · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
5.5.0affectedsemverUnavailable5.5.1None listed
5.4.0affectedsemverUnavailable5.4.3None listed
5.3.0affectedsemverUnavailable5.3.2None listed
5.2.0affectedUnavailableUnavailableUnavailableNone listed
5.1.0affectedUnavailableUnavailableUnavailableNone listed
5.0.0affectedUnavailableUnavailableUnavailableNone listed
4.7.0affectedUnavailableUnavailableUnavailableNone listed
4.6.0affectedUnavailableUnavailableUnavailableNone listed
4.5.0affectedUnavailableUnavailableUnavailableNone listed
4.4.0affectedsemverUnavailable4.4.2None listed

FortiSwitch

Vendor
Fortinet
Product
FortiSwitch
Platforms
Unknown
Default status
unaffected
FortiSwitch · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
7.0.0affectedsemverUnavailable7.0.3None listed
6.4.0affectedsemverUnavailable6.4.9None listed
6.2.0affectedsemverUnavailable6.2.7None listed
6.0.0affectedsemverUnavailable6.0.7None listed

FortiADC

Vendor
Fortinet
Product
FortiADC
Platforms
Unknown
Default status
unaffected
FortiADC · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
6.2.0affectedsemverUnavailable6.2.2None listed
6.1.0affectedsemverUnavailable6.1.5None listed
6.0.0affectedsemverUnavailable6.0.4None listed
5.4.0affectedsemverUnavailable5.4.5None listed
5.3.0affectedsemverUnavailable5.3.7None listed
5.2.0affectedsemverUnavailable5.2.8None listed
5.1.0affectedsemverUnavailable5.1.7None listed
5.0.0affectedsemverUnavailable5.0.4None listed

FortiWeb

Vendor
Fortinet
Product
FortiWeb
Platforms
Unknown
Default status
unaffected
FortiWeb · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
6.4.0affectedsemverUnavailable6.4.1None listed
6.3.0affectedsemverUnavailable6.3.16None listed
6.2.0affectedsemverUnavailable6.2.8None listed
6.1.0affectedsemverUnavailable6.1.4None listed
6.0.0affectedsemverUnavailable6.0.8None listed
5.9.0affectedsemverUnavailable5.9.2None listed
5.8.5affectedsemverUnavailable5.8.7None listed
5.8.0affectedsemverUnavailable5.8.3None listed
5.7.0affectedsemverUnavailable5.7.3None listed
5.6.0affectedsemverUnavailable5.6.2None listed
5.5.0affectedsemverUnavailable5.5.7None listed
5.4.0affectedsemverUnavailable5.4.1None listed
5.3.0affectedsemverUnavailable5.3.9None listed
5.2.0affectedsemverUnavailable5.2.4None listed
5.1.0affectedsemverUnavailable5.1.4None listed
5.0.0affectedsemverUnavailable5.0.6None listed

FortiManager

Vendor
Fortinet
Product
FortiManager
Platforms
Unknown
Default status
unaffected
FortiManager · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
7.0.0affectedsemverUnavailable7.0.2None listed
6.4.0affectedsemverUnavailable6.4.7None listed
6.2.0affectedsemverUnavailable6.2.13None listed
6.0.0affectedsemverUnavailable6.0.12None listed