CVE-2026-4207
CRITICAL WAF: High
CVSS 9.8
Published: 2026-03-16
CWE-77 CWE-77
A vulnerability was determined 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. This impacts the function cgi_device/cgi_sms_test/cgi_firmware_upload/cgi_ntp_time of the file /cgi-bin/system_mgr.cgi. Executing a manipulation can lead to command injection. The attack may be performed from remote. The exploit has been publicly disclosed and may be utilized.
WAF Coverage Analysis
Command Injection
High WAF Coverage
OWASP: A03:2021 Injection
932xxx - Remote Code Execution
Command Injection
High WAF Coverage
OWASP: A03:2021 Injection
932xxx - Remote Code Execution
Affected Software
| Vendor | Product | Version |
|---|---|---|
| dlink | dnr-202l_firmware | up to 2026-02-05 |
| dlink | dnr-326_firmware | up to 2026-02-05 |
| dlink | dns-1100-4_firmware | up to 2026-02-05 |
| dlink | dns-120_firmware | up to 2026-02-05 |
| dlink | dns-1200-05_firmware | up to 2026-02-05 |
| dlink | dns-1550-04_firmware | up to 2026-02-05 |
| dlink | dns-315l_firmware | up to 2026-02-05 |
| dlink | dns-320_firmware | up to 2026-02-05 |
| dlink | dns-320l_firmware | up to 2026-02-05 |
| dlink | dns-320lw_firmware | up to 2026-02-05 |
References
- github.com (Exploit, Third Party Advisory)
- github.com (Exploit, Third Party Advisory)
- vuldb.com (Permissions Required, VDB Entry)
- vuldb.com (Third Party Advisory, VDB Entry)
- vuldb.com (Third Party Advisory, VDB Entry)
- vuldb.com (Third Party Advisory, VDB Entry)
- vuldb.com (Third Party Advisory, VDB Entry)
- vuldb.com (Third Party Advisory, VDB Entry)
- www.dlink.com (Product)