CVSS 3.1 Score 9.8 of 10 (high)


Published Sep 21, 2023
Updated: Sep 22, 2023
CWE ID 787


CVE-2023-43239 is a critical vulnerability that affects the D-Link DIR-816 A2 v1.10CNB05 router. The vulnerability was discovered to be a stack overflow in the showMACfilterMAC function, specifically through the parameter flag_5G. This vulnerability has a high risk score of 65 and carries a base severity rating of critical (base score of 9.8) according to NIST. It does not require any privileges or user interaction and can be exploited over a network. The impact of this vulnerability includes high integrity and confidentiality impacts, posing a significant danger to organizations that use this router model. Currently, there is no information available on how to remediate this vulnerability or if any exploits have been detected.

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