ATEN Unizon doCryptoHugeFileToFile Improper Verification of Cryptographic Signature Remote Code Execution Vulnerability
June 24th, 2026
Vulnerability Details
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.
Additional Details
ATEN has issued an update to correct this vulnerability. More details can be found at:
https://www.aten.com/global/en/supportcenter/info/security-advisory/32/
Disclosure Timeline
- 2026-03-13 - Vulnerability reported to vendor
- 2026-06-24 - Coordinated public release of advisory
- 2026-06-24 - Advisory Updated
Credit
Ahmed Y. Elmogy
