CVE-2026-9779: CWE-347: Improper Verification of Cryptographic Signature in ATEN Unizon
CVE-2026-9779 is a high-severity vulnerability in ATEN Unizon version 2.6.253.001 involving improper verification of cryptographic signatures in the updateWar method. This flaw allows authenticated remote attackers to execute arbitrary code with SYSTEM privileges. The vulnerability stems from incorrect implementation of signature verification in the doCryptoHugeFileToFile function. No official patch or remediation guidance is currently available.
AI Analysis
Technical Summary
The vulnerability CVE-2026-9779 affects ATEN Unizon version 2.6.253.001 and involves improper verification of cryptographic signatures (CWE-347) in the updateWar method, specifically in the doCryptoHugeFileToFile function. This flaw allows remote attackers who have authentication to execute arbitrary code with SYSTEM-level privileges. The issue arises from an incorrect implementation of cryptographic signature verification, which undermines the integrity checks during update processing. The vulnerability was assigned by ZDI (ZDI-CAN-28590) and has a CVSS 3.0 base score of 7.2, indicating high severity. No patch or official remediation has been disclosed as of the publication date.
Potential Impact
Successful exploitation allows an authenticated remote attacker to execute arbitrary code on the affected system with SYSTEM privileges, potentially leading to full system compromise. The vulnerability impacts confidentiality, integrity, and availability as indicated by the CVSS vector (C:H/I:H/A:H). There are no known exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict access to the affected version 2.6.253.001 of ATEN Unizon to trusted users only, and monitor for suspicious activity related to update operations. Do not rely on the cryptographic signature verification in this version for security.
CVE-2026-9779: CWE-347: Improper Verification of Cryptographic Signature in ATEN Unizon
Description
CVE-2026-9779 is a high-severity vulnerability in ATEN Unizon version 2.6.253.001 involving improper verification of cryptographic signatures in the updateWar method. This flaw allows authenticated remote attackers to execute arbitrary code with SYSTEM privileges. The vulnerability stems from incorrect implementation of signature verification in the doCryptoHugeFileToFile function. No official patch or remediation guidance is currently available.
CVSS v3.0
Score 7.2high
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability CVE-2026-9779 affects ATEN Unizon version 2.6.253.001 and involves improper verification of cryptographic signatures (CWE-347) in the updateWar method, specifically in the doCryptoHugeFileToFile function. This flaw allows remote attackers who have authentication to execute arbitrary code with SYSTEM-level privileges. The issue arises from an incorrect implementation of cryptographic signature verification, which undermines the integrity checks during update processing. The vulnerability was assigned by ZDI (ZDI-CAN-28590) and has a CVSS 3.0 base score of 7.2, indicating high severity. No patch or official remediation has been disclosed as of the publication date.
Potential Impact
Successful exploitation allows an authenticated remote attacker to execute arbitrary code on the affected system with SYSTEM privileges, potentially leading to full system compromise. The vulnerability impacts confidentiality, integrity, and availability as indicated by the CVSS vector (C:H/I:H/A:H). There are no known exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict access to the affected version 2.6.253.001 of ATEN Unizon to trusted users only, and monitor for suspicious activity related to update operations. Do not rely on the cryptographic signature verification in this version for security.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- zdi
- Date Reserved
- 2026-05-27T22:19:45.945Z
- Cvss Version
- 3.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a3c501f4853345fc1e45cbf
Added to database: 06/24/2026, 21:46:07 UTC
Last enriched: 06/24/2026, 22:00:53 UTC
Last updated: 06/24/2026, 22:36:27 UTC
Views: 4
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