VULNERABILITY INTELLIGENCE

CVE-2022-43631

CVSS score6.8 MEDIUM

EPSS probability1.07%

CISA KEVNot currently listed

Published2023-03-29

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Description

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DIR-1935 1.03 routers. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the handling of SetVirtualServerSettings requests to the web management portal. When parsing subelements within the VirtualServerInfo element, 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 root. Was ZDI-CAN-16151.

Weakness classification

CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Primary references

zdi-disclosures@trendmicro.com — Patch, Vendor Advisory
zdi-disclosures@trendmicro.com — Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108 — Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory, VDB Entry