CVE-2026-21639 (GCVE-0-2026-21639)
Vulnerability from cvelistv5 – Published: 2026-01-08 16:14 – Updated: 2026-07-30 06:02
VLAI
EPSS
VEX
Summary
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.
Severity
8.8 (High)
5.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-08 17:09 UTC
CWE
Assigner
References
1 reference
Impacted products
4 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Ubiquiti Inc | airMAX AC |
Affected:
0 , < 8.7.21
(semver)
|
guessed | |
| Ubiquiti Inc | airMAX M |
Affected:
0 , < 6.3.24
(semver)
|
guessed | |
| Ubiquiti Inc | airFiber AF60-XG |
Affected:
0 , < 1.2.3
(semver)
|
guessed | |
| Ubiquiti Inc | airFiber AF60 |
Affected:
0 , < 2.6.8
(semver)
|
guessed |
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"value": "Un actor malicioso dentro del alcance Wi-Fi del producto afectado podr\u00eda aprovechar una vulnerabilidad en el Protocolo Inal\u00e1mbrico airMAX para lograr una ejecuci\u00f3n remota de c\u00f3digo (RCE) dentro del producto afectado.\n\nProductos Afectados:\nairMAX AC (Versi\u00f3n 8.7.20 y anteriores)\nairMAX M (Versi\u00f3n 6.3.22 y anteriores)\nairFiber AF60-XG (Versi\u00f3n 1.2.2 y anteriores)\nairFiber AF60 (Versi\u00f3n 2.6.7 y anteriores)\n\nMitigaci\u00f3n:\nActualice su airMAX AC a la Versi\u00f3n 8.7.21 o posterior.\nActualice su airMAX M a la Versi\u00f3n 6.3.24 o posterior.\nActualice su airFiber AF60-XG a la Versi\u00f3n 1.2.3 o posterior.\nActualice su airFiber AF60 a la Versi\u00f3n 2.6.8 o posterior."
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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