CVE-2026-7273
Zyxel GS1900 Series Switches Stack-Based Buffer Overflow Vulnerability
8.8
CVSS 3.1
2.5 %
EPSS (current)
2026-09-21
KEV addition
No
Ransomware
Timeline
Publication, first public exploit and KEV addition on a day axis.
Key facts
Vendor / product: Zyxel / GS1900 Series Switches
Published: 2026-06-16 · Due (CISA): 2026-09-24
CWE: CWE-121 · EU list: no
Exploit references (metadata only)
No public exploit references recorded.