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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-4203 Detail

Description

A vulnerability was detected in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, DNR-322L, DNS-323, DNS-325, DNS-326, DNS-327L, DNR-326, DNS-340L, DNS-343, DNS-345, DNS-726-4, DNS-1100-4, DNS-1200-05 and DNS-1550-04 up to 20260205. Impacted is the function cgi_portforwarding_add/cgi_portforwarding_del/cgi_portforwarding_modify/cgi_portforwarding_add_scan/cgi_dhcpd_lease/cgi_ddns/cgi_ip/cgi_dhcpd of the file /cgi-bin/network_mgr.cgi. The manipulation results in command injection. The attack may be launched remotely. The exploit is now public and may be used.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

Nist CVSS score does not match with CNA score
CNA:  VulDB
CVSS-BT 2.1 LOW
Vector:  CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_122/122.md VulDB Exploit  Third Party Advisory 
https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_123/123.md VulDB Exploit  Third Party Advisory 
https://vuldb.com/?ctiid.351115 VulDB Permissions Required  VDB Entry 
https://vuldb.com/?id.351115 VulDB Third Party Advisory  VDB Entry 
https://vuldb.com/?submit.770401 VulDB Third Party Advisory  VDB Entry 
https://vuldb.com/?submit.770402 VulDB Third Party Advisory  VDB Entry 
https://vuldb.com/?submit.770403 VulDB Third Party Advisory  VDB Entry 
https://vuldb.com/?submit.770404 VulDB Third Party Advisory  VDB Entry 
https://vuldb.com/?submit.770405 VulDB Third Party Advisory  VDB Entry 
https://vuldb.com/?submit.770406 VulDB Third Party Advisory  VDB Entry 
https://vuldb.com/?submit.770407 VulDB Third Party Advisory  VDB Entry 
https://vuldb.com/?submit.770408 VulDB Third Party Advisory  VDB Entry 
https://www.dlink.com/ VulDB Product 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection') cwe source acceptance level NIST   VulDB  
CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') VulDB  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-4203
NVD Published Date:
03/16/2026
NVD Last Modified:
04/28/2026
Source:
VulDB