How severe is CVE-2026-47370?

CVE-2026-47370 has a CVSS 3.x base score of 9.9, rated critical 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-2026-47370 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-47370?

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

Does CVE-2026-47370 have an EU (EUVD) identifier?

Yes. CVE-2026-47370 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36384.

When was CVE-2026-47370 published?

CVE-2026-47370 was published on 2026-06-12 and last updated on 2026-06-17.

CVE-2026-47370

CVE-2026-47370 is a critical-severity vulnerability with a CVSS 3.x base score of 9.9. 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-20.

Key facts

Severity: Critical (CVSS 3.x base score 9.9)
EPSS exploit prediction: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-36384
Weakness: CWE-20
Published: 2026-06-12
Last modified: 2026-06-17

Description

A malicious actor with access to the network and low privileges could exploit an Improper Input Validation vulnerability found in certain devices running UniFi OS to execute a Command Injection within such UniFi OS devices or instances.

Frequently asked questions

What is CVE-2026-47370?: A malicious actor with access to the network and low privileges could exploit an Improper Input Validation vulnerability found in certain devices running UniFi OS to execute a Command Injection within such UniFi OS devices or instances.
How severe is CVE-2026-47370?: CVE-2026-47370 has a CVSS 3.x base score of 9.9, rated critical 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-2026-47370 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-47370?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-47370 have an EU (EUVD) identifier?: Yes. CVE-2026-47370 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36384.
When was CVE-2026-47370 published?: CVE-2026-47370 was published on 2026-06-12 and last updated on 2026-06-17.

References

https://community.ui.com/releases/Security-Advisory-Bulletin-065-065/aa46a22b-fc43-4eae-9382-6fc8feda967a

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