SEPTEMBER 15, 2026
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Case File

CVE-2026-90680

CRITICAL · CVSS 9.9 EPSS 0.51% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-14 · Last synced 2026-09-15

CyberRota Analysis

AI-Generated

A critical vulnerability exists in the D-Link DIR-823G router, specifically in the HNAP1 component's SetStaticRouteSettings function, which is susceptible to a stack-based buffer overflow due to improper handling of input parameters. This flaw allows remote attackers to exploit the vulnerability, potentially leading to arbitrary code execution or denial of service. Organizations using this router model should prioritize immediate patching or mitigation efforts to safeguard their networks against potential exploitation.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-90680
Severity
CRITICAL
CVSS
9.9
EPSS
0.51%

Original NVD Description

A security flaw has been discovered in D-Link DIR-823G 1.0.2B05_20181207. The impacted element is the function strcpy of the file /HNAP1/SetStaticRouteSettings of the component HNAP1. The manipulation of the argument PAddress/SubnetMask/Gateway results in stack-based buffer overflow. The attack can be launched remotely.