CVE-2023-33010
Published: May 24, 2023
Modified: Oct 21, 2025
CVSS v3.1
9.8
Description
A buffer overflow vulnerability in the ID processing function in Zyxel ATP series firmware versions 4.32 through 5.36 Patch 1, USG FLEX series firmware versions 4.50 through 5.36 Patch 1, USG FLEX 50(W) firmware versions 4.25 through 5.36 Patch 1, USG20(W)-VPN firmware versions 4.25 through 5.36 Patch 1, VPN series firmware versions 4.30 through 5.36 Patch 1, ZyWALL/USG series firmware versions 4.25 through 4.73 Patch 1, could allow an unauthenticated attacker to cause denial-of-service (DoS) conditions and even a remote code execution on an affected device.
| Vendor | Product | Versions |
|---|---|---|
Zyxel | ATP series firmware | affected 4.32 through 5.36 Patch 1 |
Zyxel | USG FLEX series firmware | affected 4.50 through 5.36 Patch 1 |
Zyxel | USG FLEX 50(W) firmware | affected 4.25 through 5.36 Patch 1 |
Zyxel | USG20(W)-VPN firmware | affected 4.25 through 5.36 Patch 1 |
Zyxel | VPN series firmware | affected 4.30 through 5.36 Patch 1 |
Zyxel | ZyWALL/USG series firmware | affected 4.25 through 4.73 Patch 1 |
Weaknesses (CWE)
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
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