FKIE_CVE-2021-42757

Vulnerability from fkie_nvd - Published: 2021-12-08 11:15 - Updated: 2025-10-16 10:15
Severity ?
6.7 (Medium) - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
6.7 (Medium) - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Summary
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.
References
psirt@fortinet.comhttps://fortiguard.com/advisory/FG-IR-21-173Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://fortiguard.com/advisory/FG-IR-21-173Vendor Advisory
Impacted products
Vendor Product Version
fortinet fortiadc *
fortinet fortiadc *
fortinet fortianalyzer *
fortinet fortianalyzer *
fortinet fortimail *
fortinet fortimail *
fortinet fortimail *
fortinet fortimanager *
fortinet fortimanager *
fortinet fortindr *
fortinet fortios-6k7k *
fortinet fortios-6k7k 6.4.2
fortinet fortios-6k7k 6.4.6
fortinet fortiportal *
fortinet fortiproxy *
fortinet fortiproxy 7.0.0
fortinet fortiproxy 7.0.1
fortinet fortivoice *
fortinet fortivoice *
fortinet fortiweb *
fortinet fortiweb 6.4.0
fortinet fortiweb 6.4.1
fortinet fortios *
fortinet fortios *
fortinet fortios *
fortinet fortios *
fortinet fortirecorder_firmware *
fortinet fortirecorder_firmware *
fortinet fortiswitch *
fortinet fortiswitch *
To clipboard 

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  "id": "CVE-2021-42757",
  "lastModified": "2025-10-16T10:15:36.230",
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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.