CVE-2026-4209

Description

A vulnerability was identified 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. Affected is the function cgi_create_import_users/cgi_user_batch_create/cgi_user_set_quota/cgi_user_del/cgi_user_modify/cgi_group_set_quota/cgi_group_modify/cgi_group_add/cgi_user_add/cgi_get_modify_group_info/cgi_chg_admin_pw of the file /cgi-bin/account_mgr.cgi. The manipulation leads to command injection. It is possible to initiate the attack remotely. The exploit is publicly available and might be used.

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

Problem types

Command Injection

Injection

Product status

Timeline

Credits

pjqwudi (VulDB User) reporter

References

vuldb.com/?id.351120 (VDB-351120 | D-Link DNS-1550-04 account_mgr.cgi cgi_chg_admin_pw command injection) vdb-entry technical-description

vuldb.com/?ctiid.351120 (VDB-351120 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/?submit.770429 (Submit #770429 | 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.770430 (Submit #770430 | 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.770431 (Submit #770431 | 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.770432 (Submit #770432 | 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.770433 (Submit #770433 | 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.770434 (Submit #770434 | 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.770435 (Submit #770435 | 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.770436 (Submit #770436 | 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.770437 (Submit #770437 | 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.770438 (Submit #770438 | 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_148/148.md related

github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_149/149.md exploit

www.dlink.com/ product

cve.org (CVE-2026-4209)

nvd.nist.gov (CVE-2026-4209)

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