CVE-2026-9621 in RSLinx Classic

Sumário

de MITRE • 01/09/2026

A denial-of-service security issue exists within RSLinx® Classic. The security issue stems from improper handling of a malformed packet. A crafted CIP packet can cause the RSLinx® Classic service to crash, requiring a restart of the service to recover

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• Responsável: Rockwell
• Reservar: 26/05/2026
• Divulgação: 01/09/2026
• Moderação: aceite
• Entrada: VDB-397660
• CPE: pronto
• CWE: CWE-404 (confirmado)
• CVSS: 4.3 (VulDB)
• EPSS: 0.00000
• KEV: não
• Atividades: muito baixo
• Sector: Government, Pharma, ...

Fontes

• MITRE: https://www.cve.org/CVERecord?id=CVE-2026-9621
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-9621
• CVE Details: https://www.cvedetails.com/cve/CVE-2026-9621/