CVE-2026-4209

moderate-risk
Published 2026-03-16

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.

Do I need to act?

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0.11% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.3/10 Medium
NETWORK / LOW complexity

Affected Products (20)

Affected Vendors

Dlink

References (15)

Exploit https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_148/148.md
Exploit https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_149/149.md
Permissions Required https://vuldb.com/?ctiid.351120
Third Party Advisory https://vuldb.com/?id.351120
Third Party Advisory https://vuldb.com/?submit.770429
Third Party Advisory https://vuldb.com/?submit.770430
Third Party Advisory https://vuldb.com/?submit.770431
Third Party Advisory https://vuldb.com/?submit.770432
Third Party Advisory https://vuldb.com/?submit.770433
Third Party Advisory https://vuldb.com/?submit.770434
Third Party Advisory https://vuldb.com/?submit.770435
Third Party Advisory https://vuldb.com/?submit.770436
Third Party Advisory https://vuldb.com/?submit.770437
Third Party Advisory https://vuldb.com/?submit.770438
Product https://www.dlink.com/
43
/ 100
moderate-risk
Severity 23/34 · High
Exploitability 0/34 · Minimal
Exposure 20/34 · Moderate