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Description

A vulnerability was detected 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_set_wto of the file /cgi-bin/system_mgr.cgi. Performing a manipulation results in improper access controls. Remote exploitation of the attack is possible. The exploit is now public and may be used.

PUBLISHED Reserved 2026-03-15 | Published 2026-03-15 | Updated 2026-03-16 | Assigner VulDB




MEDIUM: 6.9CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
HIGH: 7.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:W/RC:R
HIGH: 7.3CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:W/RC:R
7.5AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:W/RC:UR

Problem types

Improper Access Controls

Incorrect Privilege Assignment

Product status

20260205
affected

20260205
affected

20260205
affected

20260205
affected

20260205
affected

20260205
affected

20260205
affected

20260205
affected

20260205
affected

20260205
affected

20260205
affected

20260205
affected

20260205
affected

20260205
affected

20260205
affected

20260205
affected

20260205
affected

20260205
affected

20260205
affected

20260205
affected

Timeline

2026-03-15:Advisory disclosed
2026-03-15:VulDB entry created
2026-03-15:VulDB entry last update

Credits

pjq123 (VulDB User) reporter

References

vuldb.com/?id.351106 (VDB-351106 | D-Link DNS-1550-04 system_mgr.cgi cgi_set_wto access control) vdb-entry technical-description

vuldb.com/?ctiid.351106 (VDB-351106 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/?submit.769853 (Submit #769853 | D-Link DNS-120/202L/315L/320/320L/320LW/321/322L/323/325/326/327L/340L/343/345/726-4/1100-4/1200-05/1550-04 up to 20260205 Authentication Bypass Issues) third-party-advisory

github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_96/96.md exploit

www.dlink.com/ product

cve.org (CVE-2026-4194)

nvd.nist.gov (CVE-2026-4194)

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