CVE-2026-5215: D-Link DNS-1550-04 network_mgr.cgi cgi_get_ipv6 access control
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. The impacted element is the function cgigetipv6 of the file /cgi-bin/networkmgr.cgi. Such manipulation leads to improper access controls. The exploit is publicly available and might be used.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-5215?
CVE-2026-5215 is considered a high severity vulnerability due to improper access control affecting various D-Link devices.
How do I fix CVE-2026-5215?
To fix CVE-2026-5215, update your D-Link device to the latest firmware version available as of February 2026.
Which D-Link products are affected by CVE-2026-5215?
CVE-2026-5215 affects multiple D-Link models including DNS-120, DNR-202L, DNS-315L, and many others.
What type of vulnerability is CVE-2026-5215?
CVE-2026-5215 is classified as an access control vulnerability within the network manager CGI of affected D-Link devices.
Can CVE-2026-5215 lead to unauthorized access?
Yes, CVE-2026-5215 may allow unauthorized users to obtain sensitive information from the affected D-Link devices.