Is CVE-2022-41140 actively exploited?

Yes. CVE-2022-41140 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, which means exploitation in the wild has been confirmed.

Can CVE-2022-41140 be exploited remotely?

The attack vector of CVE-2022-41140 has not been classified yet.

What is the CVSS score of CVE-2022-41140?

CVE-2022-41140 has not received a CVSS score yet.

HOME VULNERABILITIESCVE-2022-41140

UNKNOWNCISA KEVIN THE WILD

CVE-2022-41140

Published: April 11, 2026

Official Description

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of multiple D-Link routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the lighttpd service, which listens on TCP port 80 by default. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-13796.

NVD Source

Technical Analysis

CVE-2022-41140 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CISA has added CVE-2022-41140 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.