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CVSS 10.0CVSS 10.0 · CRITICAL

CVE-2026-34909

A malicious actor with access to the network could exploit a Path Traversal vulnerability found in UniFi OS devices to access files on the underlying system that could be manipulated to access an underlying account.

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Severity

Score: 10.0(CRITICAL)
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
AV: NETWORK
AC: LOW
PR: NONE
UI: NONE
S: CHANGED
C: HIGH
I: HIGH
A: HIGH
Weakness (CWE): CWE-22

EPSS

Probability of exploitation (next 30 days): 0.0002 (0.0%)
Percentile: 6.8%
EPSS: 2026-05-22

Technical description

A malicious actor with access to the network could exploit a Path Traversal vulnerability found in UniFi OS devices to access files on the underlying system that could be manipulated to access an underlying account.

Published: 5/22/2026, 2:16:34 AM
Last modified: 5/22/2026, 2:16:34 AM

References

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