CVE-2026-34911 (GCVE-0-2026-34911)

Vulnerability from cvelistv5 – Published: 2026-05-22 00:43 – Updated: 2026-05-22 12:37
VLAI
Summary
A malicious actor with access to the network and low privileges could exploit a Path Traversal vulnerability found in UniFi OS devices to access files on the underlying system that could be manipulated to obtain sensitive information.
Severity
7.7 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
Ubiquiti Inc UniFi OS Server Affected: 0 , < 5.0.8 (semver)
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Ubiquiti Inc UDM Affected: 0 , < 5.1.12 (semver)
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Ubiquiti Inc UDM-Pro Affected: 0 , < 5.1.12 (semver)
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Ubiquiti Inc UDM-SE Affected: 0 , < 5.1.12 (semver)
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Ubiquiti Inc UDM-Pro-Max Affected: 0 , < 5.1.12 (semver)
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Ubiquiti Inc UDM-Beast Affected: 0 , < 5.1.11 (semver)
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Ubiquiti Inc EFG Affected: 0 , < 5.1.12 (semver)
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Ubiquiti Inc UDW Affected: 0 , < 5.1.12 (semver)
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Ubiquiti Inc UDR Affected: 0 , < 5.1.12 (semver)
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Ubiquiti Inc UDR7 Affected: 0 , < 5.1.12 (semver)
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Ubiquiti Inc UDR-5G Affected: 0 , < 5.1.12 (semver)
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Ubiquiti Inc Express 7 Affected: 0 , < 5.1.12 (semver)
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Ubiquiti Inc UNVR Affected: 0 , < 5.1.12 (semver)
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Ubiquiti Inc UNVR-Pro Affected: 0 , < 5.1.12 (semver)
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Ubiquiti Inc UNVR-Instant Affected: 0 , < 5.1.12 (semver)
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Ubiquiti Inc UNVR-G2 Affected: 0 , < 5.1.12 (semver)
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Ubiquiti Inc UNVR-G2-Pro Affected: 0 , < 5.1.12 (semver)
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Ubiquiti Inc ENVR Affected: 0 , < 5.1.12 (semver)
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Ubiquiti Inc ENVR-Core Affected: 0 , < 5.1.12 (semver)
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Ubiquiti Inc UNAS-2 Affected: 0 , < 5.1.10 (semver)
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Ubiquiti Inc UNAS-4 Affected: 0 , < 5.1.10 (semver)
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Ubiquiti Inc UNAS-Pro Affected: 0 , < 5.1.10 (semver)
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Ubiquiti Inc UNAS-Pro-4 Affected: 0 , < 5.1.10 (semver)
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Ubiquiti Inc UNAS-Pro-8 Affected: 0 , < 5.1.10 (semver)
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Ubiquiti Inc UCKP Affected: 0 , < 5.1.12 (semver)
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Ubiquiti Inc UCK Affected: 0 , < 5.1.12 (semver)
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Ubiquiti Inc UCK-Enterprise Affected: 0 , < 5.1.12 (semver)
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Ubiquiti Inc UCG-Ultra Affected: 0 , < 5.1.12 (semver)
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Ubiquiti Inc UCG-Max Affected: 0 , < 5.1.12 (semver)
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Ubiquiti Inc UCG-Fiber Affected: 0 , < 5.1.12 (semver)
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Ubiquiti Inc UCG-Industrial Affected: 0 , < 5.1.12 (semver)
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      "cveMetadata": "{\"cveId\": \"CVE-2026-34911\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-22T12:37:48.894Z\", \"dateReserved\": \"2026-03-31T15:00:06.521Z\", \"assignerOrgId\": \"36234546-b8fa-4601-9d6f-f4e334aa8ea1\", \"datePublished\": \"2026-05-22T00:43:49.189Z\", \"assignerShortName\": \"hackerone\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.