cbcvebase.
CVE-2026-4207
published 2026-03-16

CVE-2026-4207: 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…

PriorityP269critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
3.77%
88.7th percentile
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.

Affected

40 ranges· showing 25
VendorProductVersion rangeFixed in
d-linkdnr-202l
d-linkdnr-322l
d-linkdnr-326
d-linkdns-1100-4
d-linkdns-120
d-linkdns-1200-05
d-linkdns-1550-04
d-linkdns-315l
d-linkdns-320
d-linkdns-320l
d-linkdns-320lw
d-linkdns-321
d-linkdns-323
d-linkdns-325
d-linkdns-326
d-linkdns-327l
d-linkdns-340l
d-linkdns-343
d-linkdns-345
d-linkdns-726-4
dlinkdnr-202l_firmware<= 2026-02-05
dlinkdnr-326_firmware<= 2026-02-05
dlinkdns-1100-4_firmware<= 2026-02-05
dlinkdns-1200-05_firmware<= 2026-02-05
dlinkdns-120_firmware<= 2026-02-05

CVSS provenance

nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv4.02.1LOWCVSS: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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
nvdv2.06.5MEDIUMAV:N/AC:L/Au:S/C:P/I:P/A:P
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