TI-2026-08567 Aliases CVE-2026-9776 GHSA-685c-hvrm-mjvc

Path traversal in ATEN Unizon

MEDIUM 43CWE-22Published 2026-06-24 · Updated 2026-06-25

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Information disclosure
Confidentiality · integrity · availability: High · None · None
Fix status: No fix listed

Attack profile from CVSS 3.0 · CNA. Fix status from CNA. Impact type from CWE-22 and the CVSS impact.

Summary

ATEN Unizon writeFileToHttpServletResponse Directory Traversal Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose sensitive information on affected installations of ATEN Unizon. Authentication is not required to exploit this vulnerability. The specific flaw exists within the writeFileToHttpServletResponse 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 disclose information in the context of SYSTEM. Was ZDI-CAN-28505.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.01851 79th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
ATEN	Unizon	2.7.262.002	—	No fix listed	CNA

Unizon VendorATEN Affected 2.7.262.002 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:aten:unizon::::::::	before 2.7.264	Vulnerable	ATEN

cpe:2.3:a:aten:unizon:*:*:*:*:*:*:*:* Versions before 2.7.264 Vulnerable ·ATEN

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-9776
2026-10-03 Alias added: GHSA-685c-hvrm-mjvc

References

Advisory 2

TI-2026-08569 Path traversal in ATEN Unizon CVSS 3.0HIGH 7.2
TI-2026-08568 Path traversal in ATEN Unizon CVSS 3.0HIGH 7.2
TI-2026-08570 Improper signature verification in ATEN Unizon CVSS 3.0HIGH 7.2
TI-2026-08566 Path traversal in ATEN Unizon CVSS 3.1MEDIUM 6.5
TI-2026-08565 Path traversal in ATEN Unizon CVSS 3.1MEDIUM 6.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences