Zyxel Patches Stack-Based Buffer Overflow in GS1900 Switches (CVE-2026-7273)
ID: a748ae14-8e51-51e1-89ad-b1ac4d8f3953
STIX ID: report--a748ae14-8e51-51e1-89ad-b1ac4d8f3953
Feed Name: securityonline.info
Threat Score
Zyxel has released firmware updates for CVE-2026-7273, a stack-based buffer overflow in GS1900 series switches (CVSS 8.8) that may allow an unauthenticated, LAN-based attacker to execute OS commands via crafted HTTP requests; affected models and patched firmware builds are listed and users are advised to update and restrict management access until patched.
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