U.S. flag   An official website of the United States government
Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock (Dot gov) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2023-33010 Detail

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 3.x Severity and Vector Strings:

NIST CVSS score matches with CNA score
CNA:  Zyxel Corporation
Base Score:  9.8 CRITICAL
Vector:  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to nvd@nist.gov.

Hyperlink Resource
https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-buffer-overflow-vulnerabilities-of-firewalls Vendor Advisory 
https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-buffer-overflow-vulnerabilities-of-firewalls Vendor Advisory 

This CVE is in CISA's Known Exploited Vulnerabilities Catalog

Reference CISA's BOD 22-01 and Known Exploited Vulnerabilities Catalog for further guidance and requirements.

Vulnerability Name Date Added Due Date Required Action
Zyxel Multiple Firewalls Buffer Overflow Vulnerability 06/05/2023 06/26/2023 Apply updates per vendor instructions.

Weakness Enumeration

CWE-ID CWE Name Source
CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') cwe source acceptance level NIST   Zyxel Corporation  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:o:zyxel:atp100_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		From (including)
4.32		Up to (excluding)
5.36
 cpe:2.3:o:zyxel:atp100_firmware:5.36:-:*:*:*:*:*:*
   Show Matching CPE(s)
 cpe:2.3:o:zyxel:atp100_firmware:5.36:patch1:*:*:*:*:*:*
   Show Matching CPE(s)
Running on/with
 cpe:2.3:h:zyxel:atp100:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 2 ( hide )
 cpe:2.3:o:zyxel:atp200_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		From (including)
4.32		Up to (excluding)
5.36
 cpe:2.3:o:zyxel:atp200_firmware:5.36:-:*:*:*:*:*:*
   Show Matching CPE(s)
 cpe:2.3:o:zyxel:atp200_firmware:5.36:patch1:*:*:*:*:*:*
   Show Matching CPE(s)
Running on/with
 cpe:2.3:h:zyxel:atp200:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 3 ( hide )
 cpe:2.3:o:zyxel:atp500_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		From (including)
4.32		Up to (excluding)
5.36
 cpe:2.3:o:zyxel:atp500_firmware:5.36:-:*:*:*:*:*:*
   Show Matching CPE(s)
 cpe:2.3:o:zyxel:atp500_firmware:5.36:patch1:*:*:*:*:*:*
   Show Matching CPE(s)
Running on/with
 cpe:2.3:h:zyxel:atp500:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 4 ( hide )
 cpe:2.3:o:zyxel:atp100w_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		From (including)
4.32		Up to (excluding)
5.36
 cpe:2.3:o:zyxel:atp100w_firmware:5.36:-:*:*:*:*:*:*
   Show Matching CPE(s)
 cpe:2.3:o:zyxel:atp100w_firmware:5.36:patch1:*:*:*:*:*:*
   Show Matching CPE(s)
Running on/with
 cpe:2.3:h:zyxel:atp100w:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 5 ( hide )
 cpe:2.3:o:zyxel:atp700_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		From (including)
4.32		Up to (excluding)
5.36
 cpe:2.3:o:zyxel:atp700_firmware:5.36:-:*:*:*:*:*:*
   Show Matching CPE(s)
 cpe:2.3:o:zyxel:atp700_firmware:5.36:patch1:*:*:*:*:*:*
   Show Matching CPE(s)
Running on/with
 cpe:2.3:h:zyxel:atp700:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 6 ( hide )
 cpe:2.3:o:zyxel:atp800_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		From (including)
4.32		Up to (excluding)
5.36
 cpe:2.3:o:zyxel:atp800_firmware:5.36:-:*:*:*:*:*:*
   Show Matching CPE(s)
 cpe:2.3:o:zyxel:atp800_firmware:5.36:patch1:*:*:*:*:*:*
   Show Matching CPE(s)
Running on/with
 cpe:2.3:h:zyxel:atp800:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 7 ( hide )
 cpe:2.3:o:zyxel:usg_flex_100_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		From (including)
4.50		Up to (excluding)
5.36
 cpe:2.3:o:zyxel:usg_flex_100_firmware:5.36:-:*:*:*:*:*:*
   Show Matching CPE(s)
 cpe:2.3:o:zyxel:usg_flex_100_firmware:5.36:patch1:*:*:*:*:*:*
   Show Matching CPE(s)
Running on/with
 cpe:2.3:h:zyxel:usg_flex_100:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 8 ( hide )
 cpe:2.3:o:zyxel:usg_flex_50_firmware:5.36:-:*:*:*:*:*:*
   Show Matching CPE(s)
 cpe:2.3:o:zyxel:usg_flex_50_firmware:5.36:patch1:*:*:*:*:*:*
   Show Matching CPE(s)
Running on/with
 cpe:2.3:h:zyxel:usg_flex_50:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 9 ( hide )
 cpe:2.3:o:zyxel:usg_flex_200_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		From (including)
4.50		Up to (excluding)
5.36
 cpe:2.3:o:zyxel:usg_flex_200_firmware:5.36:-:*:*:*:*:*:*
   Show Matching CPE(s)
 cpe:2.3:o:zyxel:usg_flex_200_firmware:5.36:patch1:*:*:*:*:*:*
   Show Matching CPE(s)
Running on/with
 cpe:2.3:h:zyxel:usg_flex_200:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 10 ( hide )
 cpe:2.3:o:zyxel:usg_flex_500_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		From (including)
4.50		Up to (excluding)
5.36
 cpe:2.3:o:zyxel:usg_flex_500_firmware:5.36:-:*:*:*:*:*:*
   Show Matching CPE(s)
 cpe:2.3:o:zyxel:usg_flex_500_firmware:5.36:patch1:*:*:*:*:*:*
   Show Matching CPE(s)
Running on/with
 cpe:2.3:h:zyxel:usg_flex_500:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 11 ( hide )
 cpe:2.3:o:zyxel:usg_flex_700_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		From (including)
4.50		Up to (excluding)
5.36
 cpe:2.3:o:zyxel:usg_flex_700_firmware:5.36:-:*:*:*:*:*:*
   Show Matching CPE(s)
 cpe:2.3:o:zyxel:usg_flex_700_firmware:5.36:patch1:*:*:*:*:*:*
   Show Matching CPE(s)
Running on/with
 cpe:2.3:h:zyxel:usg_flex_700:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 12 ( hide )
 cpe:2.3:o:zyxel:usg_flex_100_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		From (including)
4.50		Up to (excluding)
5.36
 cpe:2.3:o:zyxel:usg_flex_100w_firmware:5.36:-:*:*:*:*:*:*
   Show Matching CPE(s)
 cpe:2.3:o:zyxel:usg_flex_100w_firmware:5.36:patch1:*:*:*:*:*:*
   Show Matching CPE(s)
Running on/with
 cpe:2.3:h:zyxel:usg_flex_100w:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 13 ( hide )
 cpe:2.3:o:zyxel:usg_flex_50w_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		From (including)
4.25		Up to (excluding)
5.36
 cpe:2.3:o:zyxel:usg_flex_50w_firmware:5.36:-:*:*:*:*:*:*
   Show Matching CPE(s)
 cpe:2.3:o:zyxel:usg_flex_50w_firmware:5.36:patch1:*:*:*:*:*:*
   Show Matching CPE(s)
Running on/with
 cpe:2.3:h:zyxel:usg_flex_50w:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 14 ( hide )
 cpe:2.3:o:zyxel:usg_20w-vpn_firmware:5.36:-:*:*:*:*:*:*
   Show Matching CPE(s)
 cpe:2.3:o:zyxel:usg_20w-vpn_firmware:5.36:patch1:*:*:*:*:*:*
   Show Matching CPE(s)
Running on/with
 cpe:2.3:h:zyxel:usg_20w-vpn:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 15 ( hide )
 cpe:2.3:o:zyxel:vpn100_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		From (including)
4.30		Up to (excluding)
5.36
 cpe:2.3:o:zyxel:vpn100_firmware:5.36:-:*:*:*:*:*:*
   Show Matching CPE(s)
 cpe:2.3:o:zyxel:vpn100_firmware:5.36:patch1:*:*:*:*:*:*
   Show Matching CPE(s)
Running on/with
 cpe:2.3:h:zyxel:vpn100:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 16 ( hide )
 cpe:2.3:o:zyxel:vpn50_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		From (including)
4.30		Up to (excluding)
5.36
 cpe:2.3:o:zyxel:vpn50_firmware:5.36:-:*:*:*:*:*:*
   Show Matching CPE(s)
 cpe:2.3:o:zyxel:vpn50_firmware:5.36:patch1:*:*:*:*:*:*
   Show Matching CPE(s)
Running on/with
 cpe:2.3:h:zyxel:vpn50:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 17 ( hide )
 cpe:2.3:o:zyxel:vpn300_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		From (including)
4.30		Up to (excluding)
5.36
 cpe:2.3:o:zyxel:vpn300_firmware:5.36:-:*:*:*:*:*:*
   Show Matching CPE(s)
 cpe:2.3:o:zyxel:vpn300_firmware:5.36:patch1:*:*:*:*:*:*
   Show Matching CPE(s)
Running on/with
 cpe:2.3:h:zyxel:vpn300:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 18 ( hide )
 cpe:2.3:o:zyxel:vpn1000_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		From (including)
4.30		Up to (excluding)
5.36
 cpe:2.3:o:zyxel:vpn1000_firmware:5.36:-:*:*:*:*:*:*
   Show Matching CPE(s)
 cpe:2.3:o:zyxel:vpn1000_firmware:5.36:patch1:*:*:*:*:*:*
   Show Matching CPE(s)
Running on/with
 cpe:2.3:h:zyxel:vpn1000:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 19 ( hide )
 cpe:2.3:o:zyxel:usg20-vpn_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		From (including)
4.30		Up to (excluding)
5.36
 cpe:2.3:o:zyxel:usg20-vpn_firmware:5.36:-:*:*:*:*:*:*
   Show Matching CPE(s)
 cpe:2.3:o:zyxel:usg20-vpn_firmware:5.36:patch1:*:*:*:*:*:*
   Show Matching CPE(s)
Running on/with
 cpe:2.3:h:zyxel:usg20-vpn:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 20 ( hide )
 cpe:2.3:o:zyxel:usg_40_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		From (including)
4.25		Up to (excluding)
4.73
 cpe:2.3:o:zyxel:usg_40_firmware:4.73:-:*:*:*:*:*:*
   Show Matching CPE(s)
 cpe:2.3:o:zyxel:usg_40_firmware:4.73:patch1:*:*:*:*:*:*
   Show Matching CPE(s)
Running on/with
 cpe:2.3:h:zyxel:usg_40:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 21 ( hide )
 cpe:2.3:o:zyxel:usg_40w_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		From (including)
4.25		Up to (excluding)
4.73
 cpe:2.3:o:zyxel:usg_40w_firmware:4.73:-:*:*:*:*:*:*
   Show Matching CPE(s)
 cpe:2.3:o:zyxel:usg_40w_firmware:4.73:patch1:*:*:*:*:*:*
   Show Matching CPE(s)
Running on/with
 cpe:2.3:h:zyxel:usg_40w:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 22 ( hide )
 cpe:2.3:o:zyxel:usg_60w_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		From (including)
4.25		Up to (excluding)
4.73
 cpe:2.3:o:zyxel:usg_60w_firmware:4.73:-:*:*:*:*:*:*
   Show Matching CPE(s)
 cpe:2.3:o:zyxel:usg_60w_firmware:4.73:patch1:*:*:*:*:*:*
   Show Matching CPE(s)
Running on/with
 cpe:2.3:h:zyxel:usg_60w:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 23 ( hide )
 cpe:2.3:o:zyxel:usg_60_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		From (including)
4.25		Up to (excluding)
4.73
 cpe:2.3:o:zyxel:usg_60_firmware:4.73:-:*:*:*:*:*:*
   Show Matching CPE(s)
 cpe:2.3:o:zyxel:usg_60_firmware:4.73:patch1:*:*:*:*:*:*
   Show Matching CPE(s)
Running on/with
 cpe:2.3:h:zyxel:usg_60:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

6 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2023-33010
NVD Published Date:
05/24/2023
NVD Last Modified:
01/27/2025
Source:
Zyxel Corporation