https://reddit.com/r/cybersecurity/comments/1wntbnz/cisa_just_added_cve20267273_affecting_zyxel/: CISA just added CVE-2026-7273 affecting Zyxel GS1900 switches to its KEV catalog.
Published Sep 23, 2026
·Updated
Affected Software
1 affected component
Zyxel GS1900
Frequently Asked Questions
1
Who can exploit this issue?
An attacker able to reach the affected switch from the LAN can exploit it without authentication. The reported impact is OS command execution.
2
Is this being actively exploited?
CISA has added CVE-2026-7273 to its Known Exploited Vulnerabilities catalog, which indicates active exploitation has been identified.
3
What is the remediation deadline for U.S. federal agencies?
Federal agencies have until September 24, 2026, to address the vulnerability.