CVE-2026-75501

CVE

Threat entity extracted from intelligence sources

Frequency

occurrences

First Seen

August 24, 2026

Last Seen

August 25, 2026

API

Exploited in Wild

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Ransomware Use

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Public Exploits

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Attack Vector

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Vulnerability Overview

Exploitation Activity

Exploitation Intelligence

Critical Calix Router Flaw Exposes Home Networks to Attack69.9

A critical vulnerability in Calix GS5239XG routers, tracked as CVE-2026-75501, allows unauthenticated remote attackers to create port-forwarding rules, exposing internal devices to the internet. Discovered by researcher Brian Khan Quintana, the flaw stems from the router's UPnP control endpoint bein...