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CVE-2023-37926

Quick assessment

Affected
Zyxel ATP series firmware
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Zyxel ATP是中国合勤（Zyxel）公司的一款防火墙。 Zyxel ATP series存在安全漏洞，该漏洞源于存在缓冲区溢出漏洞。攻击者可利用该漏洞通过执行CLI命令在受影响的设备上转储系统日志并导致拒绝服务（DOS）。受影响的产品和版本：Zyxel ATP series 4.32至5.37版本，USG FLEX series 4.50至5.37版本，USG FLEX 50(W) series 4.16至5.37版本，USG20(W)-VPN series 4.16至5.37版本，VPN seri

CVSS 5.5 · Medium EPSS 0.22% · P12

Possible ATT&CK Techniques 1 AI

T1499.001 · OS Exhaustion Flood
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I. Basic Information for CVE-2023-37926

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A buffer overflow vulnerability in the Zyxel ATP series firmware versions 4.32 through 5.37, USG FLEX series firmware versions 4.50 through 5.37, USG FLEX 50(W) series firmware versions 4.16 through 5.37, USG20(W)-VPN series firmware versions 4.16 through 5.37, and VPN series firmware versions 4.30 through 5.37, could allow an authenticated local attacker to cause denial-of-service (DoS) conditions by executing the CLI command to dump system logs on an affected device.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: CVE Program / CVE List V5
Vulnerability Title
Zyxel ATP 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Zyxel ATP是中国合勤（Zyxel）公司的一款防火墙。 Zyxel ATP series存在安全漏洞，该漏洞源于存在缓冲区溢出漏洞。攻击者可利用该漏洞通过执行CLI命令在受影响的设备上转储系统日志并导致拒绝服务（DOS）。受影响的产品和版本：Zyxel ATP series 4.32至5.37版本，USG FLEX series 4.50至5.37版本，USG FLEX 50(W) series 4.16至5.37版本，USG20(W)-VPN series 4.16至5.37版本，VPN seri
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Zyxel ATP series firmware versions 4.32 through 5.37 -
Zyxel USG FLEX series firmware versions 4.50 through 5.37 -
Zyxel USG FLEX 50(W) series firmware versions 4.16 through 5.37 -
Zyxel USG20(W)-VPN series firmware versions 4.16 through 5.37 -
Zyxel VPN series firmware versions 4.30 through 5.37 -

II. Public POCs for CVE-2023-37926

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III. Intelligence Information for CVE-2023-37926

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Other References for CVE-2023-37926 (1)

Same Patch Batch · Zyxel · 2023-11-28 · 9 CVEs total

CVE-2023-4398 7.5 HIGH Zyxel ATP 输入验证错误漏洞
CVE-2023-5960 5.5 MEDIUM Zyxel USG FLEX 安全漏洞
CVE-2023-5797 5.5 MEDIUM Zyxel ATP 安全漏洞
CVE-2023-5650 5.5 MEDIUM Zyxel ATP 安全漏洞
CVE-2023-37925 5.5 MEDIUM Zyxel ATP 安全漏洞
CVE-2023-35136 5.5 MEDIUM Zyxel ATP 输入验证错误漏洞
CVE-2023-35139 5.2 MEDIUM Zyxel ATP 跨站脚本漏洞
CVE-2023-4397 4.4 MEDIUM Zyxel ATP 安全漏洞

IV. Related Vulnerabilities

Same product: ATP series firmware
Same vendor: Zyxel
Same weakness: CWE-120

V. Comments for CVE-2023-37926

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