CVE-2026-21639

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-21639
StatePUBLISHED
Assignerhackerone
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-01-08 17:15:50 UTC
Updated2026-07-30 06:25:51 UTC
DescriptionA 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.

Risk And Classification

Primary CVSS: v3.1 5.4 MEDIUM from ADP

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

EPSS: 0.003470000 probability, percentile 0.274370000 (date 2026-08-01)

Problem Types: CWE-120 | CWE-77 | CWE-120 CWE-120 Classic Buffer Overflow | CWE-77 CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED5.4MEDIUMCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
3.1[email protected]Secondary8.8HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary5.4MEDIUMCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
3.1CNADECLARED8.8HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Ui Airfiber Af60 - All All All
Hardware Ui Airfiber Af60-xg - All All All
Operating System Ui Airfiber Af60-xg Firmware All All All All
Operating System Ui Airfiber Af60 Firmware All All All All
Hardware Ui Airmax Ac - All All All
Operating System Ui Airmax Ac Firmware All All All All
Hardware Ui Airmax M - All All All
Operating System Ui Airmax M Firmware All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Ubiquiti Inc AirMAX AC affected 8.7.21 semver Not specified
CNA Ubiquiti Inc AirMAX M affected 6.3.24 semver Not specified
CNA Ubiquiti Inc AirFiber AF60-XG affected 1.2.3 semver Not specified
CNA Ubiquiti Inc AirFiber AF60 affected 2.6.8 semver Not specified

References

ReferenceSourceLinkTags
community.ui.com/releases/Security-Advisory-Bulletin-061-061/1e4fe5f8-29c7-4a7... [email protected] community.ui.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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