Analysis and contextual insights are available on OpenCVE Cloud.
No vendor fix or workaround currently provided.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
Sign in to view the affected projects.
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2025-21579 | 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. |
Wed, 14 Jan 2026 18:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Zyxel emg3525-t50b
Zyxel emg3525-t50b Firmware Zyxel emg5523-t50b Zyxel emg5523-t50b Firmware Zyxel emg5723-t50k Zyxel emg5723-t50k Firmware Zyxel emg6726-b10a Zyxel emg6726-b10a Firmware Zyxel ex3510-b0 Zyxel ex3510-b0 Firmware Zyxel ex5510-b0 Zyxel ex5510-b0 Firmware Zyxel vmg1312-t20b Zyxel vmg1312-t20b Firmware Zyxel vmg3625-t50b Zyxel vmg3625-t50b Firmware Zyxel vmg3925-b10b Zyxel vmg3925-b10b Firmware Zyxel vmg3925-b10c Zyxel vmg3925-b10c Firmware Zyxel vmg3927-b50a Zyxel vmg3927-b50a Firmware Zyxel vmg3927-b50b Zyxel vmg3927-b50b Firmware Zyxel vmg3927-b60a Zyxel vmg3927-b60a Firmware Zyxel vmg3927-t50k Zyxel vmg3927-t50k Firmware Zyxel vmg4005-b50b Zyxel vmg4005-b50b Firmware Zyxel vmg4927-b50a Zyxel vmg4927-b50a Firmware Zyxel vmg8623-t50b Zyxel vmg8623-t50b Firmware Zyxel vmg8825-b50a Zyxel vmg8825-b50a Firmware Zyxel vmg8825-b60a Zyxel vmg8825-b60a Firmware Zyxel vmg8825-bx0b Zyxel vmg8825-bx0b Firmware Zyxel vmg8825-t50k Zyxel vmg8924-b10d Zyxel vmg8924-b10d Firmware Zyxel xmg3927-b50a Zyxel xmg3927-b50a Firmware Zyxel xmg8825-b50a Zyxel xmg8825-b50a Firmware |
|
| CPEs | cpe:2.3:h:zyxel:emg3525-t50b:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:emg5523-t50b:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:emg5723-t50k:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:emg6726-b10a:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:ex3510-b0:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:ex5510-b0:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:vmg1312-t20b:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:vmg3625-t50b:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:vmg3925-b10b:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:vmg3925-b10c:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:vmg3927-b50a:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:vmg3927-b50b:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:vmg3927-b60a:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:vmg3927-t50k:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:vmg4005-b50b:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:vmg4927-b50a:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:vmg8623-t50b:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:vmg8825-b50a:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:vmg8825-b60a:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:vmg8825-bx0b:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:vmg8825-t50k:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:vmg8924-b10d:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:xmg3927-b50a:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:xmg8825-b50a:-:*:*:*:*:*:*:* cpe:2.3:o:zyxel:emg3525-t50b_firmware:*:*:*:*:america:*:*:* cpe:2.3:o:zyxel:emg3525-t50b_firmware:*:*:*:*:emea:*:*:* cpe:2.3:o:zyxel:emg5523-t50b_firmware:*:*:*:*:america:*:*:* cpe:2.3:o:zyxel:emg5523-t50b_firmware:*:*:*:*:emea:*:*:* cpe:2.3:o:zyxel:emg5723-t50k_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:emg6726-b10a_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:ex3510-b0_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:ex5510-b0_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:vmg1312-t20b_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:vmg3625-t50b_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:vmg3925-b10b_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:vmg3925-b10c_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:vmg3927-b50a_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:vmg3927-b50b_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:vmg3927-b60a_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:vmg3927-t50k_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:vmg4005-b50b_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:vmg4927-b50a_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:vmg8623-t50b_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:vmg8825-b50a_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:vmg8825-b60a_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:vmg8825-bx0b_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:vmg8825-t50k_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:vmg8924-b10d_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:xmg3927-b50a_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zyxel:xmg8825-b50a_firmware:*:*:*:*:*:*:*:* |
|
| Vendors & Products |
Zyxel emg3525-t50b
Zyxel emg3525-t50b Firmware Zyxel emg5523-t50b Zyxel emg5523-t50b Firmware Zyxel emg5723-t50k Zyxel emg5723-t50k Firmware Zyxel emg6726-b10a Zyxel emg6726-b10a Firmware Zyxel ex3510-b0 Zyxel ex3510-b0 Firmware Zyxel ex5510-b0 Zyxel ex5510-b0 Firmware Zyxel vmg1312-t20b Zyxel vmg1312-t20b Firmware Zyxel vmg3625-t50b Zyxel vmg3625-t50b Firmware Zyxel vmg3925-b10b Zyxel vmg3925-b10b Firmware Zyxel vmg3925-b10c Zyxel vmg3925-b10c Firmware Zyxel vmg3927-b50a Zyxel vmg3927-b50a Firmware Zyxel vmg3927-b50b Zyxel vmg3927-b50b Firmware Zyxel vmg3927-b60a Zyxel vmg3927-b60a Firmware Zyxel vmg3927-t50k Zyxel vmg3927-t50k Firmware Zyxel vmg4005-b50b Zyxel vmg4005-b50b Firmware Zyxel vmg4927-b50a Zyxel vmg4927-b50a Firmware Zyxel vmg8623-t50b Zyxel vmg8623-t50b Firmware Zyxel vmg8825-b50a Zyxel vmg8825-b50a Firmware Zyxel vmg8825-b60a Zyxel vmg8825-b60a Firmware Zyxel vmg8825-bx0b Zyxel vmg8825-bx0b Firmware Zyxel vmg8825-t50k Zyxel vmg8924-b10d Zyxel vmg8924-b10d Firmware Zyxel xmg3927-b50a Zyxel xmg3927-b50a Firmware Zyxel xmg8825-b50a Zyxel xmg8825-b50a Firmware |
Wed, 16 Jul 2025 15:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Wed, 16 Jul 2025 13:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
epss
|
Wed, 16 Jul 2025 07:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Weaknesses | CWE-120 | |
| References |
| |
| Metrics |
cvssV3_1
|
Subscriptions
Status: PUBLISHED
Assigner: Zyxel
Published:
Updated: 2026-02-26T17:50:32.365Z
Reserved: 2025-07-15T02:01:55.637Z
Link: CVE-2025-7673
Updated: 2025-07-16T14:35:11.324Z
Status : Analyzed
Published: 2025-07-16T07:15:24.437
Modified: 2026-01-14T17:52:29.083
Link: CVE-2025-7673
No data.
OpenCVE Enrichment
Updated: 2025-07-21T15:17:38Z
EUVD