CVE-2026-54401
HIGHCVSS 8.8/10EPSS 0.20%
Last modified
CVE-2026-54401 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. A malicious actor with access to the network and low privileges could exploit a Server-Side Request Forgery (SSRF) to escalate privileges within such UniFi OS devices or instances.. EPSS estimates a 0.20% chance of exploitation in the next 30 days.
Description
A malicious actor with access to the network and low privileges could exploit a Server-Side Request Forgery (SSRF) to escalate privileges within such UniFi OS devices or instances.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Ui | Unifi Os Server | <= 5.1.15 |
| Ui | Unifi Dream Machine Firmware | <= 5.1.15 |
| Ui | Unifi Dream Machine Pro Firmware | <= 5.1.15 |
| Ui | Unifi Dream Machine Special Edition Firmware | <= 5.1.15 |
| Ui | Unifi Dream Machine Pro Max Firmware | <= 5.1.15 |
| Ui | Unifi Dream Machine Beast Firmware | <= 5.1.15 |
| Ui | Enterprise Fortress Gateway Firmware | <= 5.1.15 |
| Ui | Unifi Dream Router Firmware | <= 5.1.15 |
| Ui | Unifi Dream Wall Firmware | <= 5.1.15 |
| Ui | Unifi Dream Router 7 Firmware | <= 5.1.15 |
| Ui | Unifi Express 7 Firmware | <= 5.1.15 |
| Ui | Unifi Cloudkey Firmware | <= 5.1.15 |
| Ui | Unifi Cloud Key Plus Firmware | <= 5.1.15 |
| Ui | Unifi Cloudkey Enterprise Firmware | <= 5.1.15 |
| Ui | Unifi Network Video Recorder Firmware | <= 5.1.15 |
| Ui | Unifi Network Video Recorder Pro Firmware | <= 5.1.15 |
| Ui | Unifi Network Video Recorder Instant Firmware | <= 5.1.15 |
| Ui | Enterprise Network Video Recorder Firmware | <= 5.1.15 |
| Ui | Enterprise Network Video Recorder Core Firmware | <= 5.1.15 |
| Ui | Unifi Network Video Recorder G2 Firmware | <= 5.1.15 |
| Ui | Unifi Network Video Recorder G2 Pro Firmware | <= 5.1.15 |
| Ui | Unifi Cloud Gateway Ultra Firmware | <= 5.1.15 |
| Ui | Unifi Cloud Gateway Max Firmware | <= 5.1.15 |
| Ui | Unifi Cloud Gateway Industrial Firmware | <= 5.1.15 |
| Ui | Unifi Cloud Gateway Fiber Firmware | <= 5.1.15 |
| Ui | Unas 2 Firmware | <= 5.1.16 |
| Ui | Unas 4 Firmware | <= 5.1.16 |
| Ui | Unas Pro Firmware | <= 5.1.16 |
| Ui | Unas Pro 4 Firmware | <= 5.1.16 |
| Ui | Unas Pro 8 Firmware | <= 5.1.16 |
| Ui | Enterprise Firewall Core Firmware | <= 5.1.18 |
| Ui | Unifi Dream Router 5g Max Firmware | <= 5.1.15 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-54401?
A malicious actor with access to the network and low privileges could exploit a Server-Side Request Forgery (SSRF) to escalate privileges within such UniFi OS devices or instances.
How severe is CVE-2026-54401?
CVE-2026-54401 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.20% probability of exploitation in the next 30 days.
How do I fix CVE-2026-54401?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
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Are you affected by CVE-2026-54401?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST