CVE-2026-9774
ATEN Unizon updateLicense Directory Traversal Arbitrary File Deletion Vulnerability
Description
ATEN Unizon updateLicense Directory Traversal Arbitrary File Deletion Vulnerability. This vulnerability allows remote attackers to delete arbitrary files on affected installations of ATEN Unizon. Authentication is required to exploit this vulnerability. The specific flaw exists within the updateLicense method. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to delete files or create a denial-of-service condition on the system. Was ZDI-CAN-28502.
INFO
Published Date :
June 24, 2026, 10:16 p.m.
Last Modified :
June 27, 2026, 6:59 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.0 | MEDIUM | 99f1926a-a320-47d8-bbb5-42feb611262e | ||||
| CVSS 3.0 | MEDIUM | MITRE-CVE | ||||
| CVSS 3.0 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update ATEN Unizon to the latest version.
- Restrict access to the updateLicense method.
- Validate all user-supplied path inputs.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-9774.
| URL | Resource |
|---|---|
| https://www.aten.com/global/en/supportcenter/info/security-advisory/27/ | Vendor Advisory |
| https://www.zerodayinitiative.com/advisories/ZDI-26-378/ | Third Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-9774 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-9774
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-9774 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-9774 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Jun. 27, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H Added CPE Configuration OR *cpe:2.3:a:aten:unizon:*:*:*:*:*:*:*:* versions up to (excluding) 2.7.264 Added Reference Type Zero Day Initiative: https://www.aten.com/global/en/supportcenter/info/security-advisory/27/ Types: Vendor Advisory Added Reference Type Zero Day Initiative: https://www.zerodayinitiative.com/advisories/ZDI-26-378/ Types: Third Party Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 25, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-9774', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-06-25T12:54:33.810688Z'} -
New CVE Received by [email protected]
Jun. 24, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'ATEN', 'product': 'Unizon', 'versions': [{'status': 'affected', 'version': '2.7.262.002'}], 'defaultStatus': 'unknown'}] Added Description ATEN Unizon updateLicense Directory Traversal Arbitrary File Deletion Vulnerability. This vulnerability allows remote attackers to delete arbitrary files on affected installations of ATEN Unizon. Authentication is required to exploit this vulnerability. The specific flaw exists within the updateLicense method. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to delete files or create a denial-of-service condition on the system. Was ZDI-CAN-28502. Added CVSS V3 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H Added CWE CWE-22 Added Reference https://www.aten.com/global/en/supportcenter/info/security-advisory/27/ Added Reference https://www.zerodayinitiative.com/advisories/ZDI-26-378/