CVE-2022-26143

Estado: AnalizadaCrítica (9.8)⚠ Explotación activa

The TP-240 (aka tp240dvr) component in Mitel MiCollab before 9.4 SP1 FP1 and MiVoice Business Express through 8.1 allows remote attackers to obtain sensitive information and cause a denial of service (performance degradation and excessive outbound traffic). This was exploited in the wild in February and March 2022 for the TP240PhoneHome DDoS attack.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Puntuación base: 9.8

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 87%
Percentil entre todas las CVEs puntuadas: 100
Fecha de la puntuación: 6/10/2026

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

CISA KEV — explotada activamente

Añadida al catálogo: 25/3/2022
Plazo de remediación: 15/4/2022
Uso conocido en ransomware: Unknown

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

ExplotaciónT1190 Exploit Public-Facing Applicationinitial access92 %
Impacto principalT1005 Data from Local Systemcollection85 %
Impacto secundarioT1078 Valid Accountsstealth · persistence · privilege escalation · initial access72 %
Impacto secundarioT1499.004 Application or System Exploitationimpact88 %

AV:N sin autenticación (PR:N, UI:N) indica explotación remota de aplicación expuesta (T1190). Confirman extracción de información sensible, DDoS con tráfico excesivo y explotación confirmada en TP-240/ransomware febrero-marzo 2022.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Privileged Account Management Filter Network Traffic Application Developer Guidance Active Directory Configuration Vulnerability Scanning User Training

Tecnologías afectadas (2)

Mitel — Micollab Mitel — Mivoice Business Express

CWE

CWE-306
CWE-306

Referencias

JSON original (NVD)

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