CVE-2022-40720

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-01-26 · updated 2026-06-17
Weakness: CWE-78

Description

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 Dreambox plugin for the xupnpd service, which listens on TCP port 4044 by default. The issue results from the lack of proper validation of 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 router. Was ZDI-CAN-15935.

Affected products

D-Link DIR-2150: through 4.0.1

References

https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10304
https://www.zerodayinitiative.com/advisories/ZDI-22-1224/
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10304
https://www.zerodayinitiative.com/advisories/ZDI-22-1224/

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