What’s Vulnerable › Vulnerabilities

CVE-2022-43631

• Severity: medium (CVSS 6.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-03-29 · updated 2026-06-17
• Weakness: CWE-78

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.

Affected products

• D-Link DIR-1935: through 1.02; 1.03-b1, 1.03-b2

References

• https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10310
• https://www.zerodayinitiative.com/advisories/ZDI-22-1502/
• https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10310
• https://www.zerodayinitiative.com/advisories/ZDI-22-1502/

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