CVE-2026-5215
Received Received - Intake
Improper Access Control in D-Link network_mgr.cgi CGI Function

Publication date: 2026-03-31

Last updated on: 2026-04-29

Assigner: VulDB

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.
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Meta Information
Published
2026-03-31
Last Modified
2026-04-29
Generated
2026-05-07
AI Q&A
2026-04-01
EPSS Evaluated
2026-05-05
NVD
EUVD
Affected Vendors & Products
Showing 20 associated CPEs
Vendor Product Version / Range
dlink dnr-202l_firmware to 2026-02-05 (inc)
dlink dnr-326_firmware to 2026-02-05 (inc)
dlink dns-1100-4_firmware to 2026-02-05 (inc)
dlink dns-120_firmware to 2026-02-05 (inc)
dlink dns-1200-05_firmware to 2026-02-05 (inc)
dlink dns-1550-04_firmware to 2026-02-05 (inc)
dlink dns-315l_firmware to 2026-02-05 (inc)
dlink dns-320_firmware to 2026-02-05 (inc)
dlink dns-320l_firmware to 2026-02-05 (inc)
dlink dns-320lw_firmware to 2026-02-05 (inc)
dlink dns-321_firmware to 2026-02-05 (inc)
dlink dns-322l_firmware to 2026-02-05 (inc)
dlink dns-323_firmware to 2026-02-05 (inc)
dlink dns-325_firmware to 2026-02-05 (inc)
dlink dns-326_firmware to 2026-02-05 (inc)
dlink dns-327l_firmware to 2026-02-05 (inc)
dlink dns-340l_firmware to 2026-02-05 (inc)
dlink dns-343_firmware to 2026-02-05 (inc)
dlink dns-345_firmware to 2026-02-05 (inc)
dlink dns-726-4_firmware to 2026-02-05 (inc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-266 A product incorrectly assigns a privilege to a particular actor, creating an unintended sphere of control for that actor.
CWE-284 The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability exists in multiple D-Link devices, specifically in the function cgi_get_ipv6 within the file /cgi-bin/network_mgr.cgi. It causes improper access controls, meaning that unauthorized users might be able to access or manipulate certain functions or data that should be restricted.

The vulnerability affects a range of D-Link models up to the version 20260205, and the exploit for this vulnerability is publicly available.


How can this vulnerability impact me? :

Because this vulnerability leads to improper access controls, an attacker could potentially gain unauthorized access to network management functions on affected D-Link devices.

This could allow attackers to manipulate device settings or network configurations, potentially compromising network security or stability.


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