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CVE-2026-7273

CVE-2026-7273

CVSS 8.8 HIGHEPSS 0.3%CWE-121
A stack-based buffer overflow vulnerability in the CGI program of Zyxel GS1900-48HPv2 firmware versions through 2.90(ABTQ.1)C0 could allow a LAN-based, unauthenticated attacker to exploit the flaw and potentially execute OS commands via a crafted HTTP request.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Produtos afetados
Zyxel · GS1900-10HP firmwareZyxel · GS1900-16 firmwareZyxel · GS1900-24E firmwareZyxel · GS1900-24EP firmwareZyxel · GS1900-24 firmwareZyxel · GS1900-24HPv2 firmwareZyxel · GS1900-48 firmwareZyxel · GS1900-48HPv2 firmwareZyxel · GS1900-8 firmwareZyxel · GS1900-8HP firmware

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Referências
https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-stack-based-buffer-overflow-vulnerability-in-gs1900-series-switches-06-16-2026