CVE catalog
CVE-2026-54400
A malicious actor with access to the network and high privileges could exploit an Improper Access Control vulnerability found in UniFi Access Application to escalate privileges on the host device.
- Severity
- Critical · CVSS 9.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.52% · Oct 25, 2026
A malicious actor with access to the network and high privileges could exploit an Improper Access Control vulnerability found in UniFi Access Application to escalate privileges on the host device.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Cpe | unifi_access_application | Not reported | 4.2.29 | fixed |
| Cpe | unifi_access | Not reported | 4.2.29 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Cpe | unifi_access_application | cpe | Not reported | 4.2.29 | Not reported | Not reported | Not reported |
| Cpe | unifi_access | cpe | Not reported | 4.2.29 | Not reported | NVD-CVE-2026-54400 | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed:
References
- [https://community.ui.com/releases/Security-Advisory-Bulletin-066-066/984eceb3-49c8-4227-942d-671c289b3afc]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-54400]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-2171.json]
[CERT-Bund public advisories] · [FIRST EPSS] · [National Vulnerability Database (NVD)]