NVD

CVE-2023-4397 Detail

Modified

This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.

Description

A buffer overflow vulnerability in the Zyxel ATP series firmware version 5.37, USG FLEX series firmware version 5.37, USG FLEX 50(W) series firmware version 5.37, and USG20(W)-VPN series firmware version 5.37, could allow an authenticated local attacker with administrator privileges to cause denial-of-service (DoS) conditions by executing the CLI command with crafted strings 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 4.0 Severity and Vector Strings:

NIST: NVD

N/A

NVD assessment not yet provided.

CVSS 3.x Severity and Vector Strings:

Nist CVSS score does not match with CNA score

CNA: Zyxel Corporation

Base Score: 4.4 MEDIUM

Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

CVSS 2.0 Severity and Vector Strings:

National Institute of Standards and Technology

NIST: NVD

Base Score: N/A

NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink	Resource
https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-in-firewalls-and-aps	Vendor Advisory
https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-in-firewalls-and-aps	Vendor Advisory

Weakness Enumeration

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

Known Affected Software Configurations Switch to CPE 2.2

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Change History

4 change records found show changes

Initial Analysis by NIST 12/04/2023 1:05:04 PM

Action	Type	Old Value	New Value
Added	CPE Configuration		AND OR cpe:2.3:o:zyxel:zld:5.37::::::: OR cpe:2.3:h:zyxel:atp100:-:::::::* cpe:2.3:h:zyxel:atp100w:-:::::::* cpe:2.3:h:zyxel:atp200:-:::::::* cpe:2.3:h:zyxel:atp500:-:::::::* cpe:2.3:h:zyxel:atp700:-:::::::* cpe:2.3:h:zyxel:atp800:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:zyxel:zld:5.37::::::: OR cpe:2.3:h:zyxel:usg_20w-vpn:-:::::::* cpe:2.3:h:zyxel:vpn50w:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:zyxel:zld:5.37::::::: OR cpe:2.3:h:zyxel:usg_flex_100:-:::::::* cpe:2.3:h:zyxel:usg_flex_100w:-:::::::* cpe:2.3:h:zyxel:usg_flex_200:-:::::::* cpe:2.3:h:zyxel:usg_flex_50:-:::::::* cpe:2.3:h:zyxel:usg_flex_500:-:::::::* cpe:2.3:h:zyxel:usg_flex_50w:-:::::::* cpe:2.3:h:zyxel:usg_flex_700:-:::::::*
Changed	Reference Type	https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-in-firewalls-and-aps No Types Assigned	https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-in-firewalls-and-aps Vendor Advisory

Quick Info

CVE Dictionary Entry:
CVE-2023-4397
NVD Published Date:
11/27/2023
NVD Last Modified:
11/21/2024
Source:
Zyxel Corporation

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