CVE-2023-27991
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I. Basic Information for CVE-2023-27991
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
The post-authentication command injection vulnerability in the CLI command of Zyxel ATP series firmware versions 4.32 through 5.35, USG FLEX series firmware versions 4.50 through 5.35, USG FLEX 50(W) firmware versions 4.16 through 5.35, USG20(W)-VPN firmware versions 4.16 through 5.35, and VPN series firmware versions 4.30 through 5.35, which could allow an authenticated attacker to execute some OS commands remotely.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Zyxel ATP 操作系统命令注入漏洞
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 4.32版本至5.35版本存在安全漏洞。攻击者利用该漏洞远程执行某些操作系统命令。
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 | 4.32 through 5.35 | - | |
| Zyxel | USG FLEX series firmware | 4.50 through 5.35 | - | |
| Zyxel | USG FLEX 50(W) firmware | 4.16 through 5.35 | - | |
| Zyxel | USG20(W)-VPN firmware | 4.16 through 5.35 | - | |
| Zyxel | VPN series firmware | 4.30 through 5.35 | - |
II. Public POCs for CVE-2023-27991
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Zyxel · 2023-04-24 · 8 CVEs total
| CVE-2023-22916 | 8.1 HIGH | Zyxel ATP 安全漏洞 |
| CVE-2023-22913 | 8.1 HIGH | Zyxel USG FLEX 命令注入漏洞 |
| CVE-2023-22917 | 7.5 HIGH | Zyxel ATP 安全漏洞 |
| CVE-2023-22915 | 7.5 HIGH | Zyxel USG FLEX 安全漏洞 |
| CVE-2023-22914 | 7.2 HIGH | Zyxel USG FLEX 路径遍历漏洞 |
| CVE-2023-22918 | 6.5 MEDIUM | Zyxel ATP 安全漏洞 |
| CVE-2023-27990 | 4.8 MEDIUM | Zyxel ATP 跨站脚本漏洞 |
IV. Related Vulnerabilities
Same weakness: CWE-78
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D-Link DNS-320 webfile_mgr.cgi chown os command injection - CVE-2026-8271
D-Link DNS-320 network_mgr.cgi cgi_upnp_edit os command inje - CVE-2026-8265
Tenda AC6 httpd getLogFile get_log_file os command injection - CVE-2026-8264
Tenda AC6 httpd WifiApScan formWifiApScan os command injecti
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