CVE-2026-4209

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.

Score

CVSS 3.1 9.8 Critical

Status

Analyzed - cna@vuldb.com

Published

2026-03-16

Last modified

2026-03-16

Weaknesses

CWE-74, CWE-77

Affected products

• Dnr-202l (D-link)
• Dnr-322l (D-link)
• Dnr-326 (D-link)
• Dns-1100-4 (D-link)
• Dns-120 (D-link)
• Dns-1200-05 (D-link)
• Dns-1550-04 (D-link)
• Dns-315l (D-link)
• Dns-320 (D-link)
• Dns-320l (D-link)
• Dns-320lw (D-link)
• Dns-321 (D-link)
• Dns-323 (D-link)
• Dns-325 (D-link)
• Dns-326 (D-link)
• Dns-327l (D-link)
• Dns-340l (D-link)
• Dns-343 (D-link)
• Dns-345 (D-link)
• Dns-726-4 (D-link)
• Dnr-202l Firmware (Dlink)
• Dnr-326 Firmware (Dlink)
• Dns-1100-4 Firmware (Dlink)
• Dns-1200-05 Firmware (Dlink)
• Dns-120 Firmware (Dlink)
• Dns-1550-04 Firmware (Dlink)
• Dns-315l Firmware (Dlink)
• Dns-320 Firmware (Dlink)
• Dns-320l Firmware (Dlink)
• Dns-320lw Firmware (Dlink)
• Dns-321 Firmware (Dlink)
• Dns-322l Firmware (Dlink)
• Dns-323 Firmware (Dlink)
• Dns-325 Firmware (Dlink)
• Dns-326 Firmware (Dlink)
• Dns-327l Firmware (Dlink)
• Dns-340l Firmware (Dlink)
• Dns-343 Firmware (Dlink)
• Dns-345 Firmware (Dlink)
• Dns-726-4 Firmware (Dlink)

References

• https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_148/148.md
• https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_149/149.md
• https://vuldb.com/?ctiid.351120
• https://vuldb.com/?id.351120
• https://vuldb.com/?submit.770429
• https://vuldb.com/?submit.770430
• https://vuldb.com/?submit.770431
• https://vuldb.com/?submit.770432
• https://vuldb.com/?submit.770433
• https://vuldb.com/?submit.770434
• https://vuldb.com/?submit.770435
• https://vuldb.com/?submit.770436
• https://vuldb.com/?submit.770437
• https://vuldb.com/?submit.770438
• https://www.dlink.com/