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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
29< V5.50(ABOM.5)C0+ 1 more
- (no CPE)range: < V5.50(ABOM.5)C0
- (no CPE)range: <V5.50(ABOM.5)C0
cpe:2.3:o:zyxel:emg3525-t50b_firmware:*:*:*:*:emea:*:*:*+ 1 more
- cpe:2.3:o:zyxel:emg3525-t50b_firmware:*:*:*:*:emea:*:*:*range: <5.50\(abpm.4\)c0
- cpe:2.3:o:zyxel:emg3525-t50b_firmware:*:*:*:*:america:*:*:*range: <5.50\(absl.0\)b8
cpe:2.3:o:zyxel:emg5523-t50b_firmware:*:*:*:*:emea:*:*:*+ 1 more
- cpe:2.3:o:zyxel:emg5523-t50b_firmware:*:*:*:*:emea:*:*:*range: <5.50\(abpm.4\)c0
- cpe:2.3:o:zyxel:emg5523-t50b_firmware:*:*:*:*:america:*:*:*range: <5.50\(absl.0\)b8
- cpe:2.3:o:zyxel:emg5723-t50k_firmware:*:*:*:*:*:*:*:*Range: <5.50\(abom.5\)c0
- cpe:2.3:o:zyxel:emg6726-b10a_firmware:*:*:*:*:*:*:*:*Range: <5.13\(abnp.6\).c
- cpe:2.3:o:zyxel:vmg1312-t20b_firmware:*:*:*:*:*:*:*:*Range: <5.50\(absb.3\)c0
- cpe:2.3:o:zyxel:vmg3625-t50b_firmware:*:*:*:*:*:*:*:*Range: <5.50\(abpm.4\)c0
- cpe:2.3:o:zyxel:vmg3925-b10b_firmware:*:*:*:*:*:*:*:*Range: <5.13\(aavf.16\)c
- cpe:2.3:o:zyxel:vmg3925-b10c_firmware:*:*:*:*:*:*:*:*Range: <5.13\(aavf.16\)c
- cpe:2.3:o:zyxel:vmg3927-b50a_firmware:*:*:*:*:*:*:*:*Range: <5.15\(abmt.5\)c0
- cpe:2.3:o:zyxel:vmg3927-b60a_firmware:*:*:*:*:*:*:*:*Range: <5.15\(abmt.5\)c0
- cpe:2.3:o:zyxel:vmg3927-b50b_firmware:*:*:*:*:*:*:*:*Range: <5.13\(ably.6\)c0
- cpe:2.3:o:zyxel:vmg3927-t50k_firmware:*:*:*:*:*:*:*:*Range: <5.50\(abom.5\)c0
- cpe:2.3:o:zyxel:vmg4005-b50b_firmware:*:*:*:*:*:*:*:*Range: <5.13\(abrl.5\)c0
- cpe:2.3:o:zyxel:vmg4927-b50a_firmware:*:*:*:*:*:*:*:*Range: <5.13\(ably.6\)c0
- cpe:2.3:o:zyxel:vmg8623-t50b_firmware:*:*:*:*:*:*:*:*Range: <5.50\(abpm.4\)c0
- cpe:2.3:o:zyxel:vmg8825-b50a_firmware:*:*:*:*:*:*:*:*Range: <5.15\(abmt.5\)c0
- cpe:2.3:o:zyxel:vmg8825-b60a_firmware:*:*:*:*:*:*:*:*Range: <5.15\(abmt.5\)c0
- cpe:2.3:o:zyxel:vmg8825-bx0b_firmware:*:*:*:*:*:*:*:*Range: <5.17\(abny.5\)c0
- cpe:2.3:o:zyxel:vmg8825-t50k_firmware:*:*:*:*:*:*:*:*Range: <5.50\(abom.5\)c0
- cpe:2.3:o:zyxel:vmg8924-b10d_firmware:*:*:*:*:*:*:*:*Range: <5.13\(abgq.6\)c0
- cpe:2.3:o:zyxel:xmg3927-b50a_firmware:*:*:*:*:*:*:*:*Range: <5.15\(abmt.5\)c0
- cpe:2.3:o:zyxel:xmg8825-b50a_firmware:*:*:*:*:*:*:*:*Range: <5.17\(abmt.5\)c0
Patches
Vulnerability mechanics
References
1News mentions
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