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

What is CVE-2026-9779?

CVE-2026-9779 is a high-severity vulnerability in ATEN Unizon, published on 24 Jun 2026. An attacker needs administrator access to exploit it, with no action from the victim.

Official 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.

Weakness: CWE-347

Which versions are affected by CVE-2026-9779?

It affects 1 product.

Products include Aten Unizon.

How do I fix CVE-2026-9779?

No fix has been published for CVE-2026-9779 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-9779 being exploited?

There is no known exploitation of CVE-2026-9779 in the wild and no public exploit code.

Other vulnerabilities in ATEN Unizon

• CVE-2026-9776 ATEN Unizon writeFileToHttpServletResponse Directory Traversal Information Disclosure Vulnerability High 7.5
• CVE-2026-9777 ATEN Unizon restoreDB Directory Traversal Remote Code Execution Vulnerability High 7.2
• CVE-2026-9778 ATEN Unizon ImportDeviceList Directory Traversal Remote Code Execution Vulnerability High 7.2
• CVE-2026-9774 ATEN Unizon updateLicense Directory Traversal Arbitrary File Deletion Vulnerability Medium 5.5
• CVE-2026-9775 ATEN Unizon uploadSSL Directory Traversal Arbitrary File Deletion Vulnerability Medium 5.5

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-2h8c-cmrc-4q5c.