CVE-2026-89040 in Mass Service Engine in Cluster (MSEC)

Sumário

de MITRE • 16/09/2026

Tencent Mass Service Engine in Cluster (MSEC) allows a remote, unauthenticated attacker to send a crafted POST request including ../ and gain root access on the target device. An attacker who uploads a webshell can execute arbitrary code as root.

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• Responsável: Cisa-cg
• Reservar: 10/09/2026
• Divulgação: 16/09/2026
• Moderação: aceite
• Entrada: VDB-405369
• CPE: pronto
• CWE: CWE-434 (confirmado)
• CVSS: 9.8 (CNA)
• EPSS: 0.00000
• KEV: não
• Atividades: baixo

Fontes

• MITRE: https://www.cve.org/CVERecord?id=CVE-2026-89040
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-89040
• CVE Details: https://www.cvedetails.com/cve/CVE-2026-89040/