CVE-2022-40720

Adjacent command execution via unvalidated Dreambox input

Published Jan 26, 2023 · Updated Apr 1, 2025

Command injection in the xupnpd Dreambox plugin in D-Link DIR-2150 4.0.1 allows network-adjacent attackers to execute commands. The plugin passes a user-supplied string to a system call without proper validation while xupnpd listens on TCP port 4044 by default. An unauthenticated attacker on an adjacent network can run code in the router context, affecting confidentiality, integrity, and availability.

CVSS severity8.8
High
EPSS probability1.75%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in the xupnpd Dreambox plugin in D-Link DIR-2150 4.0.1 allows network-adjacent attackers to execute commands. The plugin passes a user-supplied string to a system call without proper validation while xupnpd listens on TCP port 4044 by default. An unauthenticated attacker on an adjacent network can run code in the router context, affecting confidentiality, integrity, and availability.

The record

CVE
CVE-2022-40720
Published
Jan 26, 2023
Updated
Apr 1, 2025
Vendor
D-Link
Product
DIR-2150
Classifications
CWE-78, T1059
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 26, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 1, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4.0.1

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

D-Link · DIR-2150version=4.0.1

Published CVSS scores

8.8Zero Day InitiativeCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.8NIST NVDCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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