CVE-2026-1685: medium-severity vulnerability in D-Link DIR-823X
D-Link DIR-823X Login sub_40AC74 excessive authentication
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.3epss 1.2%
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.
CVSS: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
Affected products
D-Link · DIR-823XRelated CVEs — D-Link DIR-823X
In the same product, most dangerous first.
CVE-2026-1125MEDIUMD-Link DIR-823X set_wifidog_settings sub_412E7C command injectionEPSS 15.7%CVE-2025-1103HIGHD-Link DIR-823X HTTP POST Request set_wifi_blacklists null pointer dereferenceEPSS 14.1%CVE-2026-2142HIGHD-Link DIR-823X set_qos sub_420688 os command injectionEPSS 6.6%CVE-2026-2081MEDIUMD-Link DIR-823X set_password os command injectionEPSS 6.4%CVE-2025-10634MEDIUMD-Link DIR-823X Environment Variable goahead sub_412E7C command injectionEPSS 6.3%CVE-2026-2082MEDIUMD-Link DIR-823X set_mac_clone os command injectionEPSS 5.9%