CASCACascade Atlas

Evidence dossier

CVE-2026-34910

CVE-2026-34910

82.7–97.7Priority evidence range
As known Jul 19, 2026, 5:00 AM UTCgen-56ccdaf9

Normalized restatement

A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi OS devices to execute a Command Injection.

State
PUBLISHED
Published
May 22, 2026
Updated
Jun 24, 2026
Evidence coverage
85%
CISA KEVCatalog member

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

FIRST EPSS78.55%

2026-07-18 · v2026.06.15 · percentile 99.5%

Source stateNo scored conflict

Distinct CVSS assessments remain side by side; none are averaged.

Source comparison

Who said what

CISA-ADPindependent enrichment
container

CISA ADP Vulnrichment

hackeroneoriginal assertion
container

A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi OS devices to execute a Command Injection.

CISA KEVoriginal assertion
observed_exploitation

Ubiquiti UniFi OS Improper Input Validation Vulnerability

FIRST EPSSoriginal assertion
model_probability

Probability 0.785550000000; percentile 0.995400000000

Applicability

Cited product scope

Trace impact →
Ubiquiti IncEFG
[{"status": "affected", "version": "0", "lessThan": "5.1.12", "versionType": "semver"}]unknown
Ubiquiti IncENVR
[{"status": "affected", "version": "0", "lessThan": "5.1.12", "versionType": "semver"}]unknown
Ubiquiti IncENVR-Core
[{"status": "affected", "version": "0", "lessThan": "5.1.12", "versionType": "semver"}]unknown
Ubiquiti IncExpress 7
[{"status": "affected", "version": "0", "lessThan": "5.1.12", "versionType": "semver"}]unknown
Ubiquiti IncUCG-Fiber
[{"status": "affected", "version": "0", "lessThan": "5.1.12", "versionType": "semver"}]unknown
Ubiquiti IncUCG-Industrial
[{"status": "affected", "version": "0", "lessThan": "5.1.12", "versionType": "semver"}]unknown
Ubiquiti IncUCG-Max
[{"status": "affected", "version": "0", "lessThan": "5.1.12", "versionType": "semver"}]unknown
Ubiquiti IncUCG-Ultra
[{"status": "affected", "version": "0", "lessThan": "5.1.12", "versionType": "semver"}]unknown
Ubiquiti IncUCK
[{"status": "affected", "version": "0", "lessThan": "5.1.12", "versionType": "semver"}]unknown
Ubiquiti IncUCK-Enterprise
[{"status": "affected", "version": "0", "lessThan": "5.1.12", "versionType": "semver"}]unknown
Ubiquiti IncUCKP
[{"status": "affected", "version": "0", "lessThan": "5.1.12", "versionType": "semver"}]unknown
Ubiquiti IncUDM
[{"status": "affected", "version": "0", "lessThan": "5.1.12", "versionType": "semver"}]unknown
Ubiquiti IncUDM-Beast
[{"status": "affected", "version": "0", "lessThan": "5.1.11", "versionType": "semver"}]unknown
Ubiquiti IncUDM-Pro
[{"status": "affected", "version": "0", "lessThan": "5.1.12", "versionType": "semver"}]unknown
Ubiquiti IncUDM-Pro-Max
[{"status": "affected", "version": "0", "lessThan": "5.1.12", "versionType": "semver"}]unknown
Ubiquiti IncUDM-SE
[{"status": "affected", "version": "0", "lessThan": "5.1.12", "versionType": "semver"}]unknown
Ubiquiti IncUDR
[{"status": "affected", "version": "0", "lessThan": "5.1.12", "versionType": "semver"}]unknown
Ubiquiti IncUDR-5G
[{"status": "affected", "version": "0", "lessThan": "5.1.12", "versionType": "semver"}]unknown
Ubiquiti IncUDR7
[{"status": "affected", "version": "0", "lessThan": "5.1.12", "versionType": "semver"}]unknown
Ubiquiti IncUDW
[{"status": "affected", "version": "0", "lessThan": "5.1.12", "versionType": "semver"}]unknown
Ubiquiti IncUNAS-2
[{"status": "affected", "version": "0", "lessThan": "5.1.10", "versionType": "semver"}]unknown
Ubiquiti IncUNAS-4
[{"status": "affected", "version": "0", "lessThan": "5.1.10", "versionType": "semver"}]unknown
Ubiquiti IncUNAS-Pro
[{"status": "affected", "version": "0", "lessThan": "5.1.10", "versionType": "semver"}]unknown
Ubiquiti IncUNAS-Pro-4
[{"status": "affected", "version": "0", "lessThan": "5.1.10", "versionType": "semver"}]unknown
Ubiquiti IncUNAS-Pro-8
[{"status": "affected", "version": "0", "lessThan": "5.1.10", "versionType": "semver"}]unknown
Ubiquiti IncUniFi OS Server
[{"status": "affected", "version": "0", "lessThan": "5.0.8", "versionType": "semver"}]unknown
Ubiquiti IncUNVR
[{"status": "affected", "version": "0", "lessThan": "5.1.12", "versionType": "semver"}]unknown
Ubiquiti IncUNVR-G2
[{"status": "affected", "version": "0", "lessThan": "5.1.12", "versionType": "semver"}]unknown
Ubiquiti IncUNVR-G2-Pro
[{"status": "affected", "version": "0", "lessThan": "5.1.12", "versionType": "semver"}]unknown
Ubiquiti IncUNVR-Instant
[{"status": "affected", "version": "0", "lessThan": "5.1.12", "versionType": "semver"}]unknown
Ubiquiti IncUNVR-Pro
[{"status": "affected", "version": "0", "lessThan": "5.1.12", "versionType": "semver"}]unknown
Unknown vendorUnknown product
cpe:2.3:a:ui:unifi_os_server:*:*:*:*:*:*:*:*; end excluding 5.0.8supported
Unknown vendorUnknown product
cpe:2.3:h:ui:enterprise_fortress_gateway:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:ui:enterprise_network_video_recorder:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:ui:enterprise_network_video_recorder_core:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:ui:unas_2:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:ui:unas_4:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:ui:unas_pro:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:ui:unas_pro_4:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:ui:unas_pro_8:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:ui:unifi_cloud_gateway_fiber:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:ui:unifi_cloud_gateway_industrial:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:ui:unifi_cloud_gateway_max:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:ui:unifi_cloud_gateway_ultra:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:ui:unifi_cloudkey:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:ui:unifi_cloudkey_enterprise:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:ui:unifi_cloud_key_plus:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:ui:unifi_dream_machine:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:ui:unifi_dream_machine_beast:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:ui:unifi_dream_machine_pro:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:ui:unifi_dream_machine_pro_max:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:ui:unifi_dream_machine_special_edition:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:ui:unifi_dream_router:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:ui:unifi_dream_router_5g_max:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:ui:unifi_dream_router_7:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:ui:unifi_dream_wall:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:ui:unifi_express_7:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:ui:unifi_network_video_recorder:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:ui:unifi_network_video_recorder_g2:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:ui:unifi_network_video_recorder_g2_pro:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:ui:unifi_network_video_recorder_instant:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:ui:unifi_network_video_recorder_pro:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:o:ui:enterprise_fortress_gateway_firmware:*:*:*:*:*:*:*:*; end excluding 5.1.12supported
Unknown vendorUnknown product
cpe:2.3:o:ui:enterprise_network_video_recorder_core_firmware:*:*:*:*:*:*:*:*; end excluding 5.1.12supported
Unknown vendorUnknown product
cpe:2.3:o:ui:enterprise_network_video_recorder_firmware:*:*:*:*:*:*:*:*; end excluding 5.1.12supported
Unknown vendorUnknown product
cpe:2.3:o:ui:unas_2_firmware:*:*:*:*:*:*:*:*; end excluding 5.1.10supported
Unknown vendorUnknown product
cpe:2.3:o:ui:unas_4_firmware:*:*:*:*:*:*:*:*; end excluding 5.1.10supported
Unknown vendorUnknown product
cpe:2.3:o:ui:unas_pro_4_firmware:*:*:*:*:*:*:*:*; end excluding 5.1.10supported
Unknown vendorUnknown product
cpe:2.3:o:ui:unas_pro_8_firmware:*:*:*:*:*:*:*:*; end excluding 5.1.10supported
Unknown vendorUnknown product
cpe:2.3:o:ui:unas_pro_firmware:*:*:*:*:*:*:*:*; end excluding 5.1.10supported
Unknown vendorUnknown product
cpe:2.3:o:ui:unifi_cloud_gateway_fiber_firmware:*:*:*:*:*:*:*:*; end excluding 5.1.12supported
Unknown vendorUnknown product
cpe:2.3:o:ui:unifi_cloud_gateway_industrial_firmware:*:*:*:*:*:*:*:*; end excluding 5.1.12supported
Unknown vendorUnknown product
cpe:2.3:o:ui:unifi_cloud_gateway_max_firmware:*:*:*:*:*:*:*:*; end excluding 5.1.12supported
Unknown vendorUnknown product
cpe:2.3:o:ui:unifi_cloud_gateway_ultra_firmware:*:*:*:*:*:*:*:*; end excluding 5.1.12supported
Unknown vendorUnknown product
cpe:2.3:o:ui:unifi_cloudkey_enterprise_firmware:*:*:*:*:*:*:*:*; end excluding 5.1.12supported
Unknown vendorUnknown product
cpe:2.3:o:ui:unifi_cloudkey_firmware:*:*:*:*:*:*:*:*; end excluding 5.1.12supported
Unknown vendorUnknown product
cpe:2.3:o:ui:unifi_cloud_key_plus_firmware:*:*:*:*:*:*:*:*; end excluding 5.1.12supported
Unknown vendorUnknown product
cpe:2.3:o:ui:unifi_dream_machine_beast_firmware:*:*:*:*:*:*:*:*; end excluding 5.1.11supported
Unknown vendorUnknown product
cpe:2.3:o:ui:unifi_dream_machine_firmware:*:*:*:*:*:*:*:*; end excluding 5.1.12supported
Unknown vendorUnknown product
cpe:2.3:o:ui:unifi_dream_machine_pro_firmware:*:*:*:*:*:*:*:*; end excluding 5.1.12supported
Unknown vendorUnknown product
cpe:2.3:o:ui:unifi_dream_machine_pro_max_firmware:*:*:*:*:*:*:*:*; end excluding 5.1.12supported
Unknown vendorUnknown product
cpe:2.3:o:ui:unifi_dream_machine_special_edition_firmware:*:*:*:*:*:*:*:*; end excluding 5.1.12supported
Unknown vendorUnknown product
cpe:2.3:o:ui:unifi_dream_router_5g_max_firmware:*:*:*:*:*:*:*:*; end excluding 5.1.12supported
Unknown vendorUnknown product
cpe:2.3:o:ui:unifi_dream_router_7_firmware:*:*:*:*:*:*:*:*; end excluding 5.1.12supported
Unknown vendorUnknown product
cpe:2.3:o:ui:unifi_dream_router_firmware:*:*:*:*:*:*:*:*; end excluding 5.1.12supported
Unknown vendorUnknown product
cpe:2.3:o:ui:unifi_dream_wall_firmware:*:*:*:*:*:*:*:*; end excluding 5.1.12supported
Unknown vendorUnknown product
cpe:2.3:o:ui:unifi_express_7_firmware:*:*:*:*:*:*:*:*; end excluding 5.1.12supported
Unknown vendorUnknown product
cpe:2.3:o:ui:unifi_network_video_recorder_firmware:*:*:*:*:*:*:*:*; end excluding 5.1.12supported
Unknown vendorUnknown product
cpe:2.3:o:ui:unifi_network_video_recorder_g2_firmware:*:*:*:*:*:*:*:*; end excluding 5.1.12supported
Unknown vendorUnknown product
cpe:2.3:o:ui:unifi_network_video_recorder_g2_pro_firmware:*:*:*:*:*:*:*:*; end excluding 5.1.12supported
Unknown vendorUnknown product
cpe:2.3:o:ui:unifi_network_video_recorder_instant_firmware:*:*:*:*:*:*:*:*; end excluding 5.1.12supported
Unknown vendorUnknown product
cpe:2.3:o:ui:unifi_network_video_recorder_pro_firmware:*:*:*:*:*:*:*:*; end excluding 5.1.12supported

Assessments

CVSS by origin

10.0
support@hackerone.comCVSS 3.1 · role SecondaryCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
10.0
hackeroneCVSS 3.1 · role unknownCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Limitations and unknowns

  • KEV membership is authoritative for the catalog, not proof of exposure in any environment.
  • EPSS is a dated model probability and not an individual-environment prediction.
  • Affected or fixed status applies only to the exact cited product and version scope; unresolved scope remains unknown.
  • NVD-carried upstream facts remain derivative and are not independent corroboration.
  • Only NVD metrics validated under the generation-bound calculator are Public Priority eligible; direct CVE record metrics remain display-only.
  • NVD CVSS source eligibility is closed: NVD-authored, exact record-source, or registered same-CVE container origin; unmapped sources remain display-only.
  • Factor D is unknown in Public Core because no accepted canonical mapping-obligation ledger is present.
  • Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.