CVE-2026-54406
CVE-2026-54406 is a high-severity vulnerability in Ui Unifi Network Application with a CVSS 3.x base score of 8.7. 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 8.7)
- EPSS exploit prediction: 0% (24th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-22
- Affected product: Ui Unifi Network Application
- Published:
- Last modified:
Description
A malicious actor with access to the network and high privileges could exploit a Path Traversal vulnerability found in self-hosted instances of UniFi Network Application to escalate write permission on the host device.
Frequently asked questions
- What is CVE-2026-54406?
- A malicious actor with access to the network and high privileges could exploit a Path Traversal vulnerability found in self-hosted instances of UniFi Network Application to escalate write permission on the host device.
- How severe is CVE-2026-54406?
- CVE-2026-54406 has a CVSS 3.x base score of 8.7, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.
- Is CVE-2026-54406 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-2026-54406?
- CVE-2026-54406 affects Ui Unifi Network Application. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-54406?
- 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-2026-54406 published?
- CVE-2026-54406 was published on 2026-07-02 and last updated on 2026-07-06.
References
Affected products (1)
- cpe:2.3:a:ui:unifi_network_application:*:*:*:*:*:*:*:*
More vulnerabilities in Ui Unifi Network Application
- CVE-2023-28365 — Critical (CVSS 9.1): A backup file vulnerability found in UniFi applications (Version 7.3.83 and earlier) running on Linux operating systems…
- CVE-2026-55114 — High (CVSS 8.8): A malicious actor with access to the network and low privileges could exploit an Improper Access Control vulnerability…
- CVE-2026-55118 — High (CVSS 8.3): A malicious actor with access to the network,low privileges and under certain conditions could exploit an Improper…
- CVE-2024-42025 — High (CVSS 7.8): A Command Injection vulnerability found in a Self-Hosted UniFi Network Servers (Linux) with UniFi Network Application…
- CVE-2026-56842 — High (CVSS 7.5): A malicious actor with access to the network and under certain conditions could exploit an Incorrect Authorization…
- CVE-2026-54405 — High (CVSS 7.5): A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi…
All CVEs affecting Ui Unifi Network Application →
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- CVE-2026-34909 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit a Path Traversal vulnerability found in UniFi OS devices to…
- CVE-2026-7411 — Critical (CVSS 10.0): In Eclipse BaSyx Java Server SDK versions prior to 2.0.0-milestone-10, inadequate path normalization in the Submodel…
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