CVE-2026-5215

D-Link DNS-1550-04 network_mgr.cgi cgi_get_ipv6 access control

State: Published
Severity: 5.3 Medium
Published: Mar 31, 2026
Updated: Apr 1, 2026
Reserved: Mar 31, 2026

Description

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 cgi_get_ipv6 of the file /cgi-bin/network_mgr.cgi. Such manipulation leads to improper access controls. The exploit is publicly available and might be used.

Scores

CVSS	Score	Vector	Source
4.0	5.3 Medium	CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P	VulDB
3.1	4.3 Medium	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R	VulDB
3.0	4.3 Medium	CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R	VulDB
2.0	3.3 Low	AV:A/AC:L/Au:N/C:P/I:N/A:N/E:POC/RL:ND/RC:UR	VulDB

Weaknesses

CWE-284 Improper Access Controls
CWE-266 Incorrect Privilege Assignment

Affected Products

Product	Versions
DNS-120D-Link	20260205Affected
DNR-202LD-Link	20260205Affected
DNS-315LD-Link	20260205Affected
DNS-320D-Link	20260205Affected
DNS-320LD-Link	20260205Affected
DNS-320LWD-Link	20260205Affected
DNS-321D-Link	20260205Affected
DNR-322LD-Link	20260205Affected
DNS-323D-Link	20260205Affected
DNS-325D-Link	20260205Affected
DNS-326D-Link	20260205Affected
DNS-327LD-Link	20260205Affected
DNR-326D-Link	20260205Affected
DNS-340LD-Link	20260205Affected
DNS-343D-Link	20260205Affected
DNS-345D-Link	20260205Affected
DNS-726-4D-Link	20260205Affected
DNS-1100-4D-Link	20260205Affected
DNS-1200-05D-Link	20260205Affected
DNS-1550-04D-Link	20260205Affected

References

VDB-354351 | D-Link DNS-1550-04 network_mgr.cgi cgi_get_ipv6 access controlvdb-entrytechnical-description
VDB-354351 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
Submit #780440 | D-Link DNS-120/202L/315L/320/320L/320LW/321/322L/323/325/326/327L/326/340L/343/345/726-4/1100-4/1200-05/1550-04 up to 20260205 Improper Access Controlsthird-party-advisory
https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_170/170.mdexploit
https://www.dlink.com/product

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