CVSS 3.1
6.7 mediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HCVE-2021-42757
Medium (6.7) in fortinet. EPSS 0.5% chance of exploitation in the next 30 days.
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.
Severity
- EPSS
- 0.5% chance of exploitation in the next 30 days; higher than 43% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-120, CWE-787
- Published
- Modified
- Record from
- the NVD, synced
Affected
- fortinet:fortiadc
- fortinet:fortianalyzer
- fortinet:fortimail
- fortinet:fortimanager
- fortinet:fortindr
- fortinet:fortios
- fortinet:fortios-6k7k
- fortinet:fortiportal
- fortinet:fortiproxy
- fortinet:fortirecorder_firmware
- fortinet:fortiswitch
- fortinet:fortivoice
- fortinet:fortiweb