CVE-2026-21638
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I. Basic Information for CVE-2026-21638
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
A malicious actor in Wi-Fi range of the affected product could leverage a vulnerability in the airMAX Wireless Protocol to achieve a remote code execution (RCE) within the affected product. Affected Products: UBB-XG (Version 1.2.2 and earlier) UDB-Pro/UDB-Pro-Sector (Version 1.4.1 and earlier) UBB (Version 3.1.5 and earlier) Mitigation: Update your UBB-XG to Version 1.2.3 or later. Update your UDB-Pro/UDB-Pro-Sector to Version 1.4.2 or later. Update your UBB to Version 3.1.7 or later.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Ubiquiti多款产品 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Ubiquiti UBB-XG和Ubiquiti UDB-Pro都是美国优比快（Ubiquiti）公司的一款无线网桥设备。 Ubiquiti多款产品存在安全漏洞，该漏洞源于airMAX无线协议存在问题，可能导致远程代码执行。以下产品和版本受到影响：UBB-XG 1.2.2及之前版本、UDB-Pro/UDB-Pro-Sector 1.4.1及之前版本和UBB 3.1.5及之前版本。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Ubiquiti Inc | UBB-XG | 0 ~ 1.2.3 | - | |
| Ubiquiti Inc | UDB-Pro/UDB-Pro-Sector | 0 ~ 1.4.2 | - | |
| Ubiquiti Inc | UBB | 0 ~ 3.1.7 | - |
II. Public POCs for CVE-2026-21638
| # | POC Description | Source Link | Shenlong Link |
|---|
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IV. Related Vulnerabilities
Same vendor: Ubiquiti Inc
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Ubiquiti UniFi Play PowerAmp和Ubiquiti UniFi Play Audio Port - CVE-2026-22562
Ubiquiti UniFi Play PowerAmp和Ubiquiti UniFi Play Audio Port - CVE-2026-22565
Ubiquiti UniFi Play PowerAmp和Ubiquiti UniFi Play Audio Port - CVE-2026-22563
Ubiquiti UniFi Play PowerAmp和Ubiquiti UniFi Play Audio Port - CVE-2026-22564
Ubiquiti UniFi Play PowerAmp和Ubiquiti UniFi Play Audio Port
V. Comments for CVE-2026-21638
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