CVE-2022-4873

Public Exploit
Stack based overflow on Netcomm router models NF20MESH, NF20, and NL1902

Description

On Netcomm router models NF20MESH, NF20, and NL1902 a stack based buffer overflow affects the sessionKey parameter. By providing a specific number of bytes, the instruction pointer is able to be overwritten on the stack and crashes the application at a known location.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 8.97% Top 10%
Third-Party Advisory github.com
Affected: Netcomm NF20
Affected: Netcomm NF20MESH
Affected: Netcomm NL1902
Published at:
Updated at:

References

Link Tags
https://github.com/scarvell/advisories/blob/main/2022_netcomm_nf20mesh_unauth_rce.md third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2022-4873?
CVE-2022-4873 has been scored as a critical severity vulnerability.
How to fix CVE-2022-4873?
To fix CVE-2022-4873, 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-2022-4873 being actively exploited in the wild?
It is possible that CVE-2022-4873 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~9% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-4873?
CVE-2022-4873 affects Netcomm NF20, Netcomm NF20MESH, Netcomm NL1902.
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