6.7
CVE-2021-42757
- EPSS 0.48%
- Veröffentlicht 08.12.2021 11:15:11
- Zuletzt bearbeitet 16.10.2025 10:15:36
- Erkennungen
LoginA 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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Fortinet ≫ Fortianalyzer Version >= 6.0.0 <= 6.4.7
Fortinet ≫ Fortianalyzer Version >= 7.0.0 <= 7.0.2
Fortinet ≫ Fortimanager Version >= 6.0.0 <= 6.4.7
Fortinet ≫ Fortimanager Version >= 7.0.0 <= 7.0.2
Fortinet ≫ Fortios-6k7k Version <= 6.2.8
Fortinet ≫ Fortios-6k7k Version 6.4.2
Fortinet ≫ Fortios-6k7k Version 6.4.6
Fortinet ≫ Fortiportal Version >= 5.0.0 <= 6.0.10
Fortinet ≫ FortiProxy Version >= 1.0.0 <= 2.0.7
Fortinet ≫ FortiProxy Version 7.0.0
Fortinet ≫ FortiProxy Version 7.0.1
Fortinet ≫ Fortivoice Version >= 6.0.0 <= 6.0.10
Fortinet ≫ Fortivoice Version >= 6.4.0 <= 6.4.4
Fortinet ≫ Fortirecorder Firmware Version >= 2.6.0 <= 6.0.10
Fortinet ≫ Fortirecorder Firmware Version >= 6.4.0 <= 6.4.2
Fortinet ≫ Fortiswitch Version >= 6.0.0 <= 6.4.9
Fortinet ≫ Fortiswitch Version >= 7.0.0 <= 7.0.3
| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 0.48% | 0.375 |
| Quelle | Base Score | Exploit Score | Impact Score | Vector String |
|---|---|---|---|---|
| NIST | 6.7 | 0.8 | 5.9 |
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
|
| NIST | 4.6 | 3.9 | 6.4 |
AV:L/AC:L/Au:N/C:P/I:P/A:P
|
| Fortinet | 6.7 | 0.8 | 5.9 |
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
|
CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.
CWE-787 Out-of-bounds Write
The product writes data past the end, or before the beginning, of the intended buffer.
https://fortiguard.com/advisory/FG-IR-21-173