EUVD-2026-12233CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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4Description
A security flaw has been discovered in D-Link DIR-816 1.10CNB05. This affects an unknown function of the file /goform/form2RepeaterStep2.cgi of the component goahead. The manipulation of the argument key1/key2/key3/key4/pskValue results in stack-based buffer overflow. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks. This vulnerability only affects products that are no longer supported by the maintainer.
Analysis
Critical stack-based buffer overflow vulnerability in the D-Link DIR-816 router (firmware version 1.10CNB05) that allows remote attackers to execute arbitrary code without authentication. A public proof-of-concept exploit is available, and the vulnerability affects end-of-life products no longer supported by D-Link, making this a high-risk issue for organizations still using these devices.
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Remediation
Within 24 hours: Audit network inventory to identify all DIR-816 1.10CNB05 devices and isolate them from production networks. Within 7 days: Develop decommissioning plan for affected devices and procure replacement hardware from supported vendors. …
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External POC / Exploit Code
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