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Critical severity9.8NVD Advisory· Published Jul 16, 2025· Updated Jun 17, 2026

CVE-2025-7673

CVE-2025-7673

Description

A buffer overflow vulnerability in the URL parser of the zhttpd web server in Zyxel VMG8825-T50K firmware versions prior to V5.50(ABOM.5)C0 could allow an unauthenticated attacker to cause denial-of-service (DoS) conditions and potentially execute arbitrary code by sending a specially crafted HTTP request.

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Affected products

3
  • Zyxel/zhttpdllm-fuzzy
    Range: <V5.50(ABOM.5)C0
  • Zyxel/VMG8825-T50Kllm-fuzzy2 versions
    <V5.50(ABOM.5)C0+ 1 more
    • (no CPE)range: <V5.50(ABOM.5)C0
    • (no CPE)range: < V5.50(ABOM.5)C0

Patches

Vulnerability mechanics

References

1

News mentions

0

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