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Vulnerabilities

Vulnerability · CVE-2026-34911

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 underlyin…

Published May 22, 2026 · catalog updated Jul 23, 2026 · unifi os server

Last checked Oct 25, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-34911. EPSS is 0.68%. Act only if a listed version of unifi os server is installed.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
High7.7
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.68%
Remediation
Advisory link
Affected products
cpe ui/enterprise fortress gateway firmware · cpe ui/unifi cloud gateway industrial firmware · cpe ui/unifi dream machine firmware · cpe ui/unifi dream machine pro firmware · cpe ui/unifi dream machine pro max firmware · cpe ui/unifi dream machine special edition firmware

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe ui/enterprise fortress gateway firmwareversion unspecified
  • cpe ui/unifi cloud gateway industrial firmwareversion unspecified
  • cpe ui/unifi dream machine firmwareversion unspecified
  • cpe ui/unifi dream machine pro firmwareversion unspecified
  • cpe ui/unifi dream machine pro max firmwareversion unspecified
  • cpe ui/unifi dream machine special edition firmwareversion unspecified
  • cpe ui/unifi dream router 7 firmwareversion unspecified
  • cpe ui/unifi dream router firmwareversion unspecified
  • cpe ui/unifi dream wall firmwareversion unspecified
  • cpe ui/unifi express 7 firmwareversion unspecified
  • cpe ui/unifi network video recorder firmwareversion unspecified
  • cpe ui/unifi os serverversion unspecified

How to fix CVE-2026-34911

  • No stored fix

    No vendor fix text is stored. Use the linked advisory before you change production.

  • Version check

    No version range is stored, so an installed version cannot be checked on this page.

  • Advisory

    Open the cve_org record and follow its fix.

  • Official advisories

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-34911. EPSS is 0.68%. Act only if a listed version of unifi os server is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-22: Path Traversal. EPSS 0.68%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. May 22, 2026 · NIST NVD

    Detected

    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.

  2. Jul 23, 2026 · NIST NVD

    Updated

    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.

Sources

  • CVE.orgVulnerability recordCVE-2026-34911

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-34911

    30-day exploitation probability 0.68%

    first.org
  • NIST NVDVulnerability recordCVE-2026-34911

    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.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 25, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSOct 25, 2026
  • NIST NVDOct 18, 2026
  • CVE.orgOct 16, 2026