What is CVE-2022-40719?

CVE-2022-40719 is a high-severity vulnerability in D-Link Dir-2150, classified under OS Command Injection. CVSS score: 8.8/10. Published 2023-01-26.

How severe is CVE-2022-40719?

High severity. CVSS v3 base score is 8.8 out of 10.

RCE in D-Link Dir-2150

CVE-2022-40719

This vulnerability allows network-adjacent attackers to execute arbitrary commands on affected installations of D-Link DIR-2150 4.0.1 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the xupnpd_generic.lua plugin for the xupnpd service, which listens on TCP port 4044 by default. When parsing the feed parameter, the process does not properly validate a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of the service account. Was ZDI-CAN-15906.

Vulnerability class: Command Injection (OS Command Injection)

Published 2023-01-26 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.016 (74.5th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 74th percentile — 74.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

supportannouncement.us.dlink.com/announcement/publication.aspx (Patch, Vendor Advisory)
www.zerodayinitiative.com/advisories/ZDI-22-1223/ (VDB Entry, Third Party Advisory)

Frequently asked questions

What is CVE-2022-40719?: CVE-2022-40719 is a high-severity vulnerability in D-Link Dir-2150, classified under OS Command Injection. CVSS score: 8.8/10. Published 2023-01-26.
How severe is CVE-2022-40719?: High severity. CVSS v3 base score is 8.8 out of 10.