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CVE-2026-84830— OS command injection in privileged configuration handling

Quick assessment

Affected
SEPPmail AG Secure Email Gateway
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.

SEPPmail secure email gateway是瑞士SEPPmail公司的一款具备防垃圾邮件能力的邮件安全网关。 SEPPmail secure email gateway 15.0.7之前版本存在安全漏洞，该漏洞源于命令注入，可能导致经身份验证的管理员以提升的权限执行命令。

CVSS 8.6 · High EPSS 1.25% · P69

Affected Version Matrix 1

VendorProduct Version RangeStatus
SEPPmail AG Secure Email Gateway < 15.0.7 affected
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I. Basic Information for CVE-2026-84830

Vulnerability Information
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Vulnerability Title
OS command injection in privileged configuration handling
Source: CVE Program / CVE List V5
Vulnerability Description
SEPPmail Secure Email Gateway before 15.0.7 contains a command injection vulnerability that allows authenticated administrators to execute commands with elevated privileges.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
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
Vulnerability Title
SEPPmail secure email gateway 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SEPPmail secure email gateway是瑞士SEPPmail公司的一款具备防垃圾邮件能力的邮件安全网关。 SEPPmail secure email gateway 15.0.7之前版本存在安全漏洞，该漏洞源于命令注入，可能导致经身份验证的管理员以提升的权限执行命令。
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
SEPPmail AG Secure Email Gateway 0 ~ 15.0.7 -

II. Public POCs for CVE-2026-84830

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III. Intelligence Information for CVE-2026-84830

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Vendor Pages for CVE-2026-84830 (1)

Same Patch Batch · SEPPmail AG · 2026-09-03 · 3 CVEs total

CVE-2026-84832 8.6 HIGH Unsafe deserialization in the REST interface
CVE-2026-84831 7.7 HIGH Mandatory MFA bypass before enrollment

IV. Related Vulnerabilities

Same product: Secure Email Gateway
Same vendor: SEPPmail AG
Same weakness: CWE-78