How severe is CVE-2026-12059?

CVE-2026-12059 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-12059 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-12059?

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-2026-12059 have an EU (EUVD) identifier?

Yes. CVE-2026-12059 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36389.

When was CVE-2026-12059 published?

CVE-2026-12059 was published on 2026-06-12 and last updated on 2026-06-17.

CVE-2026-12059

CVE-2026-12059 is a high-severity vulnerability with a CVSS 3.x base score of 8.8. 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-1284.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v4: 8.7
EPSS exploit prediction: 0% (36th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-36389
Weakness: CWE-1284
Published: 2026-06-12
Last modified: 2026-06-17

Description

The SSH service of CelloOS developed by Cellopoint has an Improper Access Control vulnerability, allowing authenticated remote attackers to bypass the enforced command restrictions and execute operating system commands outside the originally authorized scope.

Frequently asked questions

What is CVE-2026-12059?: The SSH service of CelloOS developed by Cellopoint has an Improper Access Control vulnerability, allowing authenticated remote attackers to bypass the enforced command restrictions and execute operating system commands outside the originally authorized scope.
How severe is CVE-2026-12059?: CVE-2026-12059 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-12059 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-12059?: 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-2026-12059 have an EU (EUVD) identifier?: Yes. CVE-2026-12059 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36389.
When was CVE-2026-12059 published?: CVE-2026-12059 was published on 2026-06-12 and last updated on 2026-06-17.

References

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