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Description

A vulnerability was identified in D-Link DIR-823X 250416. This vulnerability affects the function sub_40AC74 of the component Login. Such manipulation leads to improper restriction of excessive authentication attempts. The attack may be performed from remote. This attack is characterized by high complexity. It is stated that the exploitability is difficult. The exploit is publicly available and might be used.

PUBLISHED Reserved 2026-01-30 | Published 2026-01-30 | Updated 2026-01-30 | Assigner VulDB




MEDIUM: 6.3CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
LOW: 3.7CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R
LOW: 3.7CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R
2.6AV:N/AC:H/Au:N/C:P/I:N/A:N/E:POC/RL:ND/RC:UR

Problem types

Improper Restriction of Excessive Authentication Attempts

Improper Control of Interaction Frequency

Product status

250416
affected

Timeline

2026-01-30:Advisory disclosed
2026-01-30:VulDB entry created
2026-01-30:VulDB entry last update

Credits

942384053 (VulDB User) reporter

References

vuldb.com/?id.343479 (VDB-343479 | D-Link DIR-823X Login sub_40AC74 excessive authentication) vdb-entry technical-description

vuldb.com/?ctiid.343479 (VDB-343479 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/?submit.740886 (Submit #740886 | D-Link dir-823X 250416 A logical flaw in the authentication mechanism exists) third-party-advisory

github.com/master-abc/cve/issues/17 exploit issue-tracking

www.dlink.com/ product

cve.org (CVE-2026-1685)

nvd.nist.gov (CVE-2026-1685)

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