MEDIUM · 6.3

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, DNR-326, DNS-340L, DNS-343, DNS-345, DNS-726...

Vulnerability Description

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.

CVSS Score

6.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
LOW

Affected Products

VendorProductVersions
DlinkDnr-202L Firmware<= 2026-02-05
DlinkDnr-202L-
DlinkDnr-326 Firmware<= 2026-02-05
DlinkDnr-326-
DlinkDns-1100-4 Firmware<= 2026-02-05
DlinkDns-1100-4-
DlinkDns-120 Firmware<= 2026-02-05
DlinkDns-120-
DlinkDns-1200-05 Firmware<= 2026-02-05
DlinkDns-1200-05-
DlinkDns-1550-04 Firmware<= 2026-02-05
DlinkDns-1550-04-
DlinkDns-315L Firmware<= 2026-02-05
DlinkDns-315L-
DlinkDns-320 Firmware<= 2026-02-05
DlinkDns-320-
DlinkDns-320L Firmware<= 2026-02-05
DlinkDns-320L-
DlinkDns-320Lw Firmware<= 2026-02-05
DlinkDns-320Lw-

Related Weaknesses (CWE)

References

FAQ

What is CVE-2026-4207?

CVE-2026-4207 is a vulnerability with a CVSS score of 6.3 (MEDIUM). 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...

How severe is CVE-2026-4207?

CVE-2026-4207 has been rated MEDIUM with a CVSS base score of 6.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-4207?

Check the references section above for vendor advisories and patch information. Affected products include: Dlink Dnr-202L Firmware, Dlink Dnr-202L, Dlink Dnr-326 Firmware, Dlink Dnr-326, Dlink Dns-1100-4 Firmware.