CVE-2024-40891

CVE

Threat entity extracted from intelligence sources

Frequency

occurrences

First Seen

February 25, 2026

Last Seen

September 22, 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

Chinese Hackers Exploit Zyxel Switch Vulnerability CVE-2026-727378.9

A Chinese-speaking threat actor has exploited a stack-based buffer overflow vulnerability (CVE-2026-7273) in Zyxel GS1900 switches, compromising 996 devices across 48 countries since August 17, 2026. The vulnerability allows unauthenticated attackers to execute OS commands via crafted HTTP requests....

Zyxel Addresses Critical RCE Flaw in Multiple Router Models67.6

Zyxel has issued security updates for a critical remote command execution vulnerability, tracked as CVE-2025-13942, affecting various router models. The flaw exists in the UPnP function, allowing unauthenticated attackers to execute arbitrary OS commands on unpatched devices. Affected devices includ...