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CVE-2026-9779— ATEN Unizon doCryptoHugeFileToFile Improper Verification of Cryptographic Signature Remote Code Execution Vulnerability

Quick assessment

Affected
ATEN Unizon
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.

ATEN Unizon是中国ATEN公司的一款应用服务器软件。 ATEN Unizon 2.6.253.001版本存在加密问题漏洞，该漏洞源于doCryptoHugeFileToFile功能中的updateWar方法对加密签名验证实现不正确，允许远程攻击者利用此漏洞在SYSTEM上下文中执行任意代码。

AI Predicted 8.1 Difficulty: Hard EPSS 0.68% · P51

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
ATEN Unizon 2.6.253.001 affected
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I. Basic Information for CVE-2026-9779

Vulnerability Information
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Vulnerability Title
ATEN Unizon doCryptoHugeFileToFile Improper Verification of Cryptographic Signature Remote Code Execution Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
ATEN Unizon doCryptoHugeFileToFile Improper Verification of Cryptographic Signature Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of ATEN Unizon. Authentication is required to exploit this vulnerability. The specific flaw exists within the updateWar method. The issue results from an incorrect implementation of cryptographic signature verification. An attacker can leverage this vulnerability to execute code in the context of SYSTEM. Was ZDI-CAN-28590.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
密码学签名的验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
ATEN Unizon 加密问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ATEN Unizon是中国ATEN公司的一款应用服务器软件。 ATEN Unizon 2.6.253.001版本存在加密问题漏洞，该漏洞源于doCryptoHugeFileToFile功能中的updateWar方法对加密签名验证实现不正确，允许远程攻击者利用此漏洞在SYSTEM上下文中执行任意代码。
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
ATEN Unizon 2.6.253.001 -

II. Public POCs for CVE-2026-9779

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III. Intelligence Information for CVE-2026-9779

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Vendor Advisories for CVE-2026-9779 (2)

Same Patch Batch · ATEN · 2026-06-24 · 6 CVEs total

CVE-2026-9777 ATEN Unizon restoreDB Directory Traversal Remote Code Execution Vulnerability
CVE-2026-9776 ATEN Unizon writeFileToHttpServletResponse Directory Traversal Information Disclosure Vuln
CVE-2026-9775 ATEN Unizon uploadSSL Directory Traversal Arbitrary File Deletion Vulnerability
CVE-2026-9774 ATEN Unizon updateLicense Directory Traversal Arbitrary File Deletion Vulnerability
CVE-2026-9778 ATEN Unizon ImportDeviceList Directory Traversal Remote Code Execution Vulnerability

IV. Related Vulnerabilities

Same product: Unizon
Same vendor: ATEN
Same weakness: CWE-347

V. Comments for CVE-2026-9779

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