How severe is CVE-2026-54407?

CVE-2026-54407 has a CVSS 3.x base score of 8.6, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability high.

Is CVE-2026-54407 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-54407?

CVE-2026-54407 affects Ui Unifi Protect. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-54407?

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.

When was CVE-2026-54407 published?

CVE-2026-54407 was published on 2026-07-02 and last updated on 2026-07-06.

CVE-2026-54407

CVE-2026-54407 is a high-severity vulnerability in Ui Unifi Protect with a CVSS 3.x base score of 8.6. 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-284.

Key facts

Severity: High (CVSS 3.x base score 8.6)
EPSS exploit prediction: 0% (24th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-284
Affected product: Ui Unifi Protect
Published: 2026-07-02
Last modified: 2026-07-06

Description

A malicious actor with access to the network could exploit an Improper Access Control vulnerability found in UniFi Protect Application to bypass authentication in certain UniFi Protect Application API endpoints.

Frequently asked questions

What is CVE-2026-54407?: A malicious actor with access to the network could exploit an Improper Access Control vulnerability found in UniFi Protect Application to bypass authentication in certain UniFi Protect Application API endpoints.
How severe is CVE-2026-54407?: CVE-2026-54407 has a CVSS 3.x base score of 8.6, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability high.
Is CVE-2026-54407 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-54407?: CVE-2026-54407 affects Ui Unifi Protect. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-54407?: 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.
When was CVE-2026-54407 published?: CVE-2026-54407 was published on 2026-07-02 and last updated on 2026-07-06.

References

https://community.ui.com/releases/Security-Advisory-Bulletin-066-066/984eceb3-49c8-4227-942d-671c289b3afc

Affected products (1)

cpe:2.3:a:ui:unifi_protect:*:*:*:*:*:*:*:*

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