Zyxel security advisory (AV26-603) – Update 1
Cybersecurity Classified by Officially
Serial number: AV26-603
Date: June 16, 2026
Updated: September 21, 2026
On June 16, 2026, Zyxel published a security advisory to address vulnerabilities in the following products:
- GS1900 series switches – multiple versions and models
Update 1
On September 21, 2026, Cybersecurity and Infrastructure Security Agency (CISA) added CVE-2026-7273 to their Known Exploited Vulnerabilities (KEV) Database.
The Cyber Centre encourages users and administrators to review the provided web links and apply the necessary updates.
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Read the original at the source: https://cyber.gc.ca/en/alerts-advisories/zyxel-security-advisory-av26-603
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Provenance
- Organization
- Canadian Centre for Cyber Security — imported from official source
- Official source
- https://www.cyber.gc.ca/api/cccs/rss/v1/get?feed=alerts_advisories&lang=en ATOM
- Imported
- September 21, 2026 21:00
- Versions
- 1 recorded
- Identity
https://cyber.gc.ca/en/alerts-advisories/zyxel-security-advisory-av26-603