Is CVE-2022-4873 actively exploited?

No active exploitation of CVE-2022-4873 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2022-4873 be exploited remotely?

Yes. CVE-2022-4873 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2022-4873?

CVE-2022-4873 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2022-4873

CRITICAL

CVE-2022-4873

CWE-787Published: January 11, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2022-4873 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.