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Fencer Vulns
critical 9.8

CVE-2025-27212 json

An Improper Input Validation in certain UniFi Access devices could allow a Command Injection by a malicious actor with access to UniFi Acce…

published 2025-08-04 15 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-23556

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.2%
EPSS 1.2% chance of exploitation in 30 days, percentile 67%
public exploits
0
none known

Summary

An Improper Input Validation in certain UniFi Access devices could allow a Command Injection by a malicious actor with access to UniFi Access management network.

Affected Products: UniFi Access Reader Pro (Version 2.14.21 and earlier) UniFi Access G2 Reader Pro (Version 1.10.32 and earlier) UniFi Access G3 Reader Pro (Version 1.10.30 and earlier) UniFi Access Intercom (Version 1.7.28 and earlier) UniFi Access G3 Intercom (Version 1.7.29 and earlier) UniFi Access Intercom Viewer (Version 1.3.20 and earlier)

Mitigation: Update UniFi Access Reader Pro Version 2.15.9 or later Update UniFi Access G2 Reader Pro Version 1.11.23 or later Update UniFi Access G3 Reader Pro Version 1.11.22 or later Update UniFi Access Intercom Version 1.8.22 or later Update UniFi Access G3 Intercom Version 1.8.22 or later Update UniFi Access Intercom Viewer Version 1.4.39 or later

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
total
Assessed
15 mo ago

Exploit prediction

1.16% chance of exploitation in the next 30 days, higher than 67% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Ubiquiti Inc UniFi Access Reader Pro
  • Ubiquiti Inc UniFi Access G2 Reader Pro
  • Ubiquiti Inc UniFi Access G3 Reader Pro
  • Ubiquiti Inc UniFi Access Intercom
  • Ubiquiti Inc UniFi Access G3 Intercom
  • Ubiquiti Inc UniFi Access Intercom Viewer

Classification

Weakness
  • CWE-20 Improper Input Validation
  • CWE-77 Improper Neutralization of Special Elements used in a Command

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.