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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.

PUBLISHED Reserved 2026-03-15 | Published 2026-03-16 | Updated 2026-03-16 | Assigner VulDB




MEDIUM: 5.3CVSS: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
MEDIUM: 6.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
MEDIUM: 6.3CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
6.5AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR

Problem types

Command Injection

Injection

Product status

20260205
affected

20260205
affected

20260205
affected

20260205
affected

20260205
affected

20260205
affected

20260205
affected

20260205
affected

20260205
affected

20260205
affected

20260205
affected

20260205
affected

20260205
affected

20260205
affected

20260205
affected

20260205
affected

20260205
affected

20260205
affected

20260205
affected

20260205
affected

Timeline

2026-03-15:Advisory disclosed
2026-03-15:VulDB entry created
2026-03-15:VulDB entry last update

Credits

pjq123 (VulDB User) reporter

References

vuldb.com/?id.351115 (VDB-351115 | D-Link DNS-1550-04 network_mgr.cgi cgi_dhcpd command injection) vdb-entry technical-description

vuldb.com/?ctiid.351115 (VDB-351115 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/?submit.770401 (Submit #770401 | D-Link DNS-120/202L/315L/320/320L/320LW/321/322L/323/325/326/327L/326/340L/343/345/726-4/1100-4/1200-05/1550-04 up to 20260205 Command Injection) third-party-advisory

vuldb.com/?submit.770402 (Submit #770402 | D-Link DNS-120/202L/315L/320/320L/320LW/321/322L/323/325/326/327L/326/340L/343/345/726-4/1100-4/1200-05/1550-04 up to 20260205 Command Injection (Duplicate)) third-party-advisory

vuldb.com/?submit.770403 (Submit #770403 | D-Link DNS-120/202L/315L/320/320L/320LW/321/322L/323/325/326/327L/326/340L/343/345/726-4/1100-4/1200-05/1550-04 up to 20260205 Command Injection (Duplicate)) third-party-advisory

vuldb.com/?submit.770404 (Submit #770404 | D-Link DNS-120/202L/315L/320/320L/320LW/321/322L/323/325/326/327L/326/340L/343/345/726-4/1100-4/1200-05/1550-04 up to 20260205 command (Duplicate)) third-party-advisory

vuldb.com/?submit.770405 (Submit #770405 | D-Link DNS-120/202L/315L/320/320L/320LW/321/322L/323/325/326/327L/326/340L/343/345/726-4/1100-4/1200-05/1550-04 up to 20260205 Command Injection (Duplicate)) third-party-advisory

vuldb.com/?submit.770406 (Submit #770406 | D-Link DNS-120/202L/315L/320/320L/320LW/321/322L/323/325/326/327L/326/340L/343/345/726-4/1100-4/1200-05/1550-04 up to 20260205 Command Injection (Duplicate)) third-party-advisory

vuldb.com/?submit.770407 (Submit #770407 | D-Link DNS-120/202L/315L/320/320L/320LW/321/322L/323/325/326/327L/326/340L/343/345/726-4/1100-4/1200-05/1550-04 up to 20260205 Command Injection (Duplicate)) third-party-advisory

vuldb.com/?submit.770408 (Submit #770408 | D-Link DNS-120/202L/315L/320/320L/320LW/321/322L/323/325/326/327L/326/340L/343/345/726-4/1100-4/1200-05/1550-04 up to 20260205 Command Injection (Duplicate)) third-party-advisory

github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_122/122.md related

github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_123/123.md exploit

www.dlink.com/ product

cve.org (CVE-2026-4203)

nvd.nist.gov (CVE-2026-4203)

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