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01 Record

CVE-2026-47369

A malicious actor with access to the network and low privileges could exploit an Improper Input Validation vulnerability found in certain devices running UniFi OS to escalate privileges within such

CriticalPUBLISHEDCNA: hackerone
CNA base score9.9 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
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02 Description

A malicious actor with access to the network and low privileges could exploit an Improper Input Validation vulnerability found in certain devices running UniFi OS to escalate privileges within such

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.30% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 22.8% of scored records. A rank, not a probability.
NVD base score
9.9 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
NVD analysis status
Deferred. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-06-12 02:27Z4 MO AGO
Last updated
2026-06-13 03:55Z4 MO AGO
Reserved
2026-05-19
Assigning CNA
hackerone
Record state
PUBLISHED
Severity
Critical (CVSS 9.9)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weaknesses
  • CWE-20Improper Input ValidationClass
Data version
5.2
Document digest
92db060c96a9a999e43a6d45ccb8c434c7d66cb1319570231e6be99bff655611

05 Affected products

VendorProductVersionsPlatforms
Ubiquiti IncUniFi OS Server0 to < 5.1.15—
Ubiquiti IncExpress0 to < 4.0.15—
Ubiquiti IncUDM0 to < 5.1.15—
Ubiquiti IncUDM-Pro0 to < 5.1.15—
Ubiquiti IncUDM-SE0 to < 5.1.15—
Ubiquiti IncUDM-Pro-Max0 to < 5.1.15—
Ubiquiti IncUDM-Beast0 to < 5.1.15—
Ubiquiti IncEFG0 to < 5.1.15—
Ubiquiti IncUDW0 to < 5.1.15—
Ubiquiti IncUDR0 to < 5.1.15—
Ubiquiti IncUDR70 to < 5.1.15—
Ubiquiti IncUDR-5G0 to < 5.1.15—
Ubiquiti IncExpress 70 to < 5.1.15—
Ubiquiti IncUNVR0 to < 5.1.15—
Ubiquiti IncUNVR-Pro0 to < 5.1.15—
Ubiquiti IncUNVR-Instant0 to < 5.1.15—
Ubiquiti IncUNVR-G20 to < 5.1.15—
Ubiquiti IncUNVR-G2-Pro0 to < 5.1.15—
Ubiquiti IncENVR0 to < 5.1.15—
Ubiquiti IncENVR-Core0 to < 5.1.15—
Ubiquiti IncUNAS-20 to < 5.1.16—
Ubiquiti IncUNAS-40 to < 5.1.16—
Ubiquiti IncUNAS-Pro0 to < 5.1.16—
Ubiquiti IncUNAS-Pro-40 to < 5.1.16—
Ubiquiti IncUNAS-Pro-80 to < 5.1.16—
Ubiquiti IncUCKP0 to < 5.1.15—
Ubiquiti IncUCK0 to < 5.1.15—
Ubiquiti IncUCK-Enterprise0 to < 5.1.15—
Ubiquiti IncUCG-Ultra0 to < 5.1.15—
Ubiquiti IncUCG-Max0 to < 5.1.15—
Ubiquiti IncUCG-Fiber0 to < 5.1.15—
Ubiquiti IncUCG-Industrial0 to < 5.1.15—

06 References