CVE-2026-55117
CVE-2026-55117 is a high-severity vulnerability in Ui Unifi Access 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-22.
Key facts
- Severity: High (CVSS 3.x base score 8.6)
- EPSS exploit prediction: 1% (45th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-22
- Affected product: Ui Unifi Access
- Published:
- Last modified:
Description
A malicious actor with access to the network could exploit a Path Traversal vulnerability found in UniFi Access Application to access files on the host device.
Frequently asked questions
- What is CVE-2026-55117?
- A malicious actor with access to the network could exploit a Path Traversal vulnerability found in UniFi Access Application to access files on the host device.
- How severe is CVE-2026-55117?
- CVE-2026-55117 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 high, integrity none, and availability none.
- Is CVE-2026-55117 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-55117?
- CVE-2026-55117 affects Ui Unifi Access. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-55117?
- 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-2026-55117 published?
- CVE-2026-55117 was published on 2026-07-02 and last updated on 2026-08-17.
References
Affected products (1)
- cpe:2.3:a:ui:unifi_access:*:*:*:*:*:*:*:*
More vulnerabilities in Ui Unifi Access
- CVE-2025-52665 — Critical (CVSS 10.0): A malicious actor with access to the management network could exploit a misconfiguration in UniFi’s door access…
- CVE-2026-50748 — Critical (CVSS 9.9): A malicious actor with access to the network and low privileges could exploit an Improper Input Validation…
- CVE-2026-54400 — Critical (CVSS 9.1): A malicious actor with access to the network and high privileges could exploit an Improper Access Control vulnerability…
All CVEs affecting Ui Unifi Access →
Other CWE-22 (Path Traversal) vulnerabilities
- CVE-2026-55393 — Critical (CVSS 10.0): Unvalidated pathnames in the web interface in Teledyne FLIR Aware2 versions through 6.9.0.2 (PackBot) and 1.7.9…
- CVE-2026-97163 — Critical (CVSS 10.0): Joomla Extension - lomart.fr - Unauthenticated remote code installation in UP plugin extension 5.0.0-5.2.0, 6.0.0-6.0.29
- CVE-2026-80155 — Critical (CVSS 10.0): Lantronix SLC8000 before firmware v9.7.0.5, SLC9000 before firmware v9.7.0.2, EMG8500/EMG7500 before firmware v9.7.0.1,…
- CVE-2026-70200 — Critical (CVSS 10.0): Improper limitation of a pathname to a restricted directory ('path traversal') in Azure Logic Apps allows an…
- CVE-2026-85706 — Critical (CVSS 10.0): GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.7 before 18.11.12, 19.0 before 19.0.9,…
- CVE-2026-76606 — Critical (CVSS 10.0): Joomla Extension - fabrikar.com - Path Traversal via image element in Fabrik < 4.7.2.