Quick answers
- Is CVE-2026-9775 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-9775 being exploited in the wild.
- How severe is CVE-2026-9775?
- Medium severity, with a CVSS score of 5.5, published 24 June 2026.
- Which products and versions are affected?
- ATEN Unizon 2.7.262.002 and earlier.
- Is there a fix for CVE-2026-9775?
- A patch was published on 2026-04-15: Fixed version FW V2.7.264.001 released Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-9775 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-9775?
- Check whether you run ATEN Unizon at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A directory traversal vulnerability exists within the uploadSSL method of ATEN Unizon, specifically at the /rest/system/ssl endpoint. The application fails to properly validate user-supplied pathnames during SSL certificate upload operations. An authenticated attacker with high privileges can provide a manipulated filename containing traversal sequences (e.g., ../) to target and delete files outside of the intended directory. This can result in a denial-of-service condition by removing critical system or application files. The vulnerability is addressed in firmware version 2.7.264.001.
Affected products
- ATEN Unizon 2.7.262.002 and earlier
Timeline
- 2026-03-13: disclosed: Vulnerability reported to vendor
- 2026-04-15: patched: Fixed version FW V2.7.264.001 released
- 2026-06-24: advisory: Coordinated public release of advisory