Vulnerability · Published Dec 8, 2021 · Assigned by fortinet
CVE-2021-42757
Medium 6.3
In plain English
A medium-severity buffer overflow in FortiADC from Fortinet. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 44% of all known vulnerabilities).
Severity (CVSS 3.1)6.3Medium
Exploit odds (30 days)0.5%top 55.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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 products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Fortinet | FortiOS | 7.0.0 – through 7.0.26.4.0 – through 6.4.76.2.0 – through 6.2.96.0.0 – through 6.0.135.6.0 – through 5.6.145.4.0 – through 5.4.135.2.0 – through 5.2.155.0.0 – through 5.0.14 |
| Fortinet | FortiDDoS-F | 6.4.0 – through 6.4.16.3.06.2.0 – through 6.2.26.1.0 – through 6.1.4 |
| Fortinet | FortiVoice | 6.4.0 – through 6.4.46.0.0 – through 6.0.10 |
| Fortinet | FortiProxy | 7.0.0 – through 7.0.12.0.0 – through 2.0.71.2.0 – through 1.2.131.1.0 – through 1.1.61.0.0 – through 1.0.7 |
| Fortinet | FortiRecorder | 6.4.0 – through 6.4.26.0.0 – through 6.0.102.7.0 – through 2.7.72.6.0 – through 2.6.3 |
| Fortinet | FortiPortal | 6.0.0 – through 6.0.105.3.0 – through 5.3.85.2.0 – through 5.2.65.1.0 – through 5.1.25.0.0 – through 5.0.3 |
| Fortinet | FortiMail | 7.0.0 – through 7.0.26.4.0 – through 6.4.66.2.0 – through 6.2.76.0.0 – through 6.0.125.4.0 – through 5.4.12 |
| Fortinet | FortiAnalyzer | 7.0.0 – through 7.0.26.4.0 – through 6.4.76.2.0 – through 6.2.136.0.0 – through 6.0.12 |
| Fortinet | FortiNDR | 1.5.0 – through 1.5.21.4.01.3.0 – through 1.3.11.2.01.1.0 |
| Fortinet | FortiDDoS | 5.5.0 – through 5.5.15.4.0 – through 5.4.35.3.0 – through 5.3.25.2.05.1.05.0.04.7.04.6.0 |
| Fortinet | FortiSwitch | 7.0.0 – through 7.0.36.4.0 – through 6.4.96.2.0 – through 6.2.76.0.0 – through 6.0.7 |
| Fortinet | FortiADC | 6.2.0 – through 6.2.26.1.0 – through 6.1.56.0.0 – through 6.0.45.4.0 – through 5.4.55.3.0 – through 5.3.75.2.0 – through 5.2.85.1.0 – through 5.1.75.0.0 – through 5.0.4 |
| Fortinet | FortiWeb | 6.4.0 – through 6.4.16.3.0 – through 6.3.166.2.0 – through 6.2.86.1.0 – through 6.1.46.0.0 – through 6.0.85.9.0 – through 5.9.25.8.5 – through 5.8.75.8.0 – through 5.8.3 |
| Fortinet | FortiManager | 7.0.0 – through 7.0.26.4.0 – through 6.4.76.2.0 – through 6.2.136.0.0 – through 6.0.12 |
Weakness: CWE-120 · Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:U/RC:C