CVE-2025-27212

CVSS 9.8 Critical
  • CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • Published: 2025-08-04T23:15:27.963

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

Related CVE by CWE

No related CWE found.

Top CVE for Vendor

No vendor taxonomy on this entry.

Recently Exploited Similar Vulnerabilities

No recent KEV-listed items for this vendor/product.

How to fix CVE-2025-27212

CVE-2025-27212 is a critical severity vulnerability affecting the affected product.

Description: 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 […]

Affected Versions:
Vulnerable: ≤ 2.14.21
Safe: ≥ 2.14.22

Exploit Difficulty: EASY
⏱️ Time to exploit: < 1 hour
🛠️ Required skills: Basic web security knowledge
💰 Public exploits: Likely available

How to Fix:

1 Identify affected systems

- Check if you're running the affected product
- Verify version (vulnerable: ≤ 2.14.21)

2 Immediate actions

- Update to ≥ 2.14.22 or later
- If patching is not immediately possible: restrict network exposure, apply least-privilege access

3 Verification

- Test the fix in a staging environment first
- Review logs for signs of exploitation
- Monitor for IOCs (Indicators of Compromise)

4 Long-term prevention

- Enable automatic security updates
- Set up vulnerability monitoring
- Review and harden security configurations

Exploit Difficulty Assessment

EASY
⏱️ Time to Exploit: < 1 hour
🛠️ Skills Required: Basic web security knowledge
💰 Public Exploits: Likely available

Affected Versions

Vulnerable: ≤ 2.14.21
Safe: ≥ 2.14.22

Vulnerability Timeline

Aug 04, 2025
Vulnerability Published

CVE details first published to NVD database

Nov 12, 2025
Imported to Database

Added to this CVE tracking system

Detection Rules & IOCs

No specific detection rules generated for this vulnerability type.

No vendor/product data available.

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