CVE-2021-42757

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.

Category

6.7
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.08%
Vendor Advisory fortiguard.com
Affected: Fortinet Fortinet FortiOS
Published at:
Updated at:

References

Link Tags
https://fortiguard.com/advisory/FG-IR-21-173 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-42757?
CVE-2021-42757 has been scored as a medium severity vulnerability.
How to fix CVE-2021-42757?
To fix CVE-2021-42757, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-42757 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-42757 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-42757?
CVE-2021-42757 affects Fortinet Fortinet FortiOS.
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