Zyxel security advisory (AV26-603) Vulnerability
Executive Summary
Serial number: AV26-603Date: June 16, 2026 On June 16, 2026, Zyxel published a security advisory to address vulnerabilities in the following products: GS1900 series switches, multiple versions and models The Cyber Centre encourages users and administrators to review the provided web links and apply the necessary updates.
Detailed Analysis
Key Facts & IoCs
Mitigations & Recommendations
No specific mitigations were provided by sources.
Source Excerpts
Canadian Centre for Cyber Security (Alt Feed) (https://cyber.gc.ca/en/alerts-advisories/zyxel-security-advisory-av26-603)
Serial number: AV26-603Date: June 16, 2026 On June 16, 2026, Zyxel published a security advisory to address vulnerabilities in the following products: GS1900 series switches, multiple versions and models The Cyber Centre encourages users and administrators to review the provided web links and apply the necessary updates. Zyxel security advisory for stack-based buffer overflow vulnerability in GS1900 series switches Zyxel Advisories
Sources
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