CVE-2022-4873

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

State: Published
Severity: 9.8 Critical
Published: Jan 11, 2023
Updated: Nov 4, 2025
Reserved: Jan 4, 2023

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.

Scores

CVSS	Score	Vector	Source
3.1	9.8 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	CISA-ADP

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
NF20Netcomm	R6B025Affected
NF20MESHNetcomm	R6B025Affected
NL1902Netcomm	R6B025Affected

References

https://github.com/scarvell/advisories/blob/main/2022_netcomm_nf20mesh_unauth_rce.md
https://www.kb.cert.org/vuls/id/986018

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