Wire · technology
Zyxel and Veeam Flaws Under Active Exploitation With Command and SYSTEM Access
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Fusion42 · 22 September 2026 · Fusion42 review
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added a patched high-severity buffer overflow vulnerability in Zyxel GS1900 series switches to its Known Exploited Vulnerabilities catalog, citing active exploitation by a malicious actor who extracted sensitive data from nearly 1,000 units across 48 countries.
This Wire brief sits within Fusion42's coverage of Security Infrastructure.
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You must patch Zyxel GS1900 switches immediately to stop active attackers from stealing credentials and configuration data. Your network defence depends on closing this widely exploited vulnerability now.
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1 source · 22 Sep 2026
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