CISA KEV catalog
Confirmed active exploitation.
Listed in CISA's catalog of Known Exploited Vulnerabilities: attackers are using it in real attacks. Patch it with priority.
- Name
- Ubiquiti AirOS Command Injection Vulnerability
- Added to catalog
- Remediation due date (US federal)
- Required action
- Apply updates per vendor instructions.
Description
On certain Ubiquiti devices, Command Injection exists via a GET request to stainfo.cgi (aka Show AP info) because the ifname variable is not sanitized, as demonstrated by shell metacharacters. The fixed version is v4.0.1 for 802.11 ISP products, v5.3.5 for AirMax ISP products, and v5.4.5 for AirSync firmware. For example, Nanostation5 (Air OS) is affected.
Affected products
ui: airos
References5
- community.ubnt.com/t5/airMAX-General-Discussion/AirOS-Security-… Issue TrackingPatchVendor Advisory
- community.ubnt.com/t5/airMAX-General-Discussion/AirOS-Security-… Issue TrackingPatchVendor Advisory
- www.exploit-db.com/exploits/14146 Third Party AdvisoryVDB Entry
- www.exploit-db.com/exploits/14146 Third Party AdvisoryVDB Entry
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=… US Government Resource
Metrics
- CVSS 3.1
-
9.8
CRITICAL
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 40% percentile: 99 · as of 10 November 2026
- CWE
- CWE-77
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