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CVE-2026-1685

D-Link DIR-823X Login sub_40AC74 excessive authentication

Published: Jan 30, 2026Updated: Apr 29, 2026 Sources: CVE List NVD BDUCWE-307
3.7LOW
NVD MITRE
EPSS Score
1.0%
Top 41.3%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available
Self-Check
Not available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:NS:UC:LI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-307CWE-799

Affected Products

D-Link Corp.
commercial·TWaka dlink, d-link international, d-link corporation
DIR-823X
Networking Infrastructure
dir-823x firmware
Networking Infrastructure
D-Link
commercial·TW
DIR-823X
Networking Infrastructure

Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Credential Access
View detailed technique mapping

References

https://github.com/master-abc/cve/issues/17
github.com
https://vuldb.com/?id.343479
vuldb.com
https://vuldb.com/?submit.740886
vuldb.com
and 3 more references View all →

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