High severity8.8NVD Advisory· Published Jun 16, 2026· Updated Jun 16, 2026

CVE-2026-7273

Description

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.

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LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Zyxel/GS1900-48HPv2llm-fuzzy
Range: <=2.90(ABTQ.1)C0

Patches

Vulnerability mechanics

References

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

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