How severe is CVE-2026-9778?

CVE-2026-9778 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-9778 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-9778?

CVE-2026-9778 affects Aten Unizon. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-9778?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-9778 have an EU (EUVD) identifier?

Yes. CVE-2026-9778 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-39116.

When was CVE-2026-9778 published?

CVE-2026-9778 was published on 2026-06-24 and last updated on 2026-06-27.

CVE-2026-9778

CVE-2026-9778 is a high-severity vulnerability in Aten Unizon with a CVSS 3.x base score of 7.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.

Key facts

Severity: High (CVSS 3.x base score 7.2)
EPSS exploit prediction: 1% (71st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-39116
Weakness: CWE-22
Affected product: Aten Unizon
Published: 2026-06-24
Last modified: 2026-06-27

Description

ATEN Unizon ImportDeviceList Directory Traversal Remote Code Execution Vulnerability. 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 ImportDeviceList 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 execute code in the context of SYSTEM. Was ZDI-CAN-28579.

Frequently asked questions

What is CVE-2026-9778?: ATEN Unizon ImportDeviceList Directory Traversal Remote Code Execution Vulnerability. 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 ImportDeviceList 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 execute code in the context of SYSTEM. Was ZDI-CAN-28579.
How severe is CVE-2026-9778?: CVE-2026-9778 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-9778 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-9778?: CVE-2026-9778 affects Aten Unizon. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-9778?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-9778 have an EU (EUVD) identifier?: Yes. CVE-2026-9778 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-39116.
When was CVE-2026-9778 published?: CVE-2026-9778 was published on 2026-06-24 and last updated on 2026-06-27.

References

Affected products (1)

cpe:2.3:a:aten:unizon:*:*:*:*:*:*:*:*

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