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CVE-2026-123025

Quick assessment

Affected
OPNsense os-acme-client
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.

在 OPNsense 的 插件（版本 4.17 及更早版本）的 Google Cloud DNS 验证模块中，发现了一个操作系统命令注入漏洞。 方法会解码 模型字段，并将字符串字段 和 直接拼接到通过 传递给 的 shell 命令中，且未进行任何验证或转义处理。拥有通过 Web 界面或 API 颁发或更新证书权限的远程认证用户，可利用此漏洞以 root 权限执行任意代码。

CVSS 9.4 · Critical
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I. Basic Information for CVE-2026-123025

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An OS Command Injection vulnerability was discovered in the Google Cloud DNS validation module of the OPNsense os-acme-client plugin through 4.17. The DnsGcloud::prepare() method decodes the dns_gcloud_key model field and directly interpolates the string fields gcloud_account and gcloud_project into a shell command passed to proc_open() via LeUtils::run_shell_command() without any validation or escaping. A remote authenticated user with privileges to issue or renew certificates through the WebGUI/API can achieve arbitrary code execution as root.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Source: CVE Program / CVE List V5
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: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
OPNsense os-acme-client 0 ~ 4.17.0 -

II. Public POCs for CVE-2026-123025

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III. Intelligence Information for CVE-2026-123025

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Other References for CVE-2026-123025 (1)

IV. Related Vulnerabilities

Same vendor: OPNsense
Same weakness: CWE-78