CVE-2025-10259: Mitsubishi Electric Corporation Melsec Iq-F Series FX5S-30mr/ds

Medium severity, CVSS 5.3. EPSS: 0.5% chance of exploitation in the next 30 days.

Improper Validation of Specified Quantity in Input vulnerability in TCP Communication Function on Mitsubishi Electric Corporation MELSEC iQ-F Series CPU module allows a remote attacker to disconnect the connection by sending specially crafted TCP packets to cause a denial-of-service (DoS) condition on the products. There is no impact on connections other than the attacked one.

Affected products

• Mitsubishi Electric Corporation Melsec Iq-F Series FX5S-30mr/ds: any version
• Mitsubishi Electric Corporation Melsec Iq-F Series FX5S-30mr/es: any version
• Mitsubishi Electric Corporation Melsec Iq-F Series FX5S-30mr/es-A: any version
• Mitsubishi Electric Corporation Melsec Iq-F Series FX5S-30mt/ds: any version
• Mitsubishi Electric Corporation Melsec Iq-F Series FX5S-30mt/dss: any version
• Mitsubishi Electric Corporation Melsec Iq-F Series FX5S-30mt/es: any version
• Mitsubishi Electric Corporation Melsec Iq-F Series FX5S-30mt/es-A: any version
• Mitsubishi Electric Corporation Melsec Iq-F Series FX5S-30mt/ess: any version
• Mitsubishi Electric Corporation Melsec Iq-F Series FX5S-40mr/ds: any version
• Mitsubishi Electric Corporation Melsec Iq-F Series FX5S-40mr/es: any version
• Mitsubishi Electric Corporation Melsec Iq-F Series FX5S-40mr/es-A: any version
• Mitsubishi Electric Corporation Melsec Iq-F Series FX5S-40mt/ds: any version
• Mitsubishi Electric Corporation Melsec Iq-F Series FX5S-40mt/dss: any version
• Mitsubishi Electric Corporation Melsec Iq-F Series FX5S-40mt/es: any version
• Mitsubishi Electric Corporation Melsec Iq-F Series FX5S-40mt/es-A: any version
• Mitsubishi Electric Corporation Melsec Iq-F Series FX5S-40mt/ess: any version
• Mitsubishi Electric Corporation Melsec Iq-F Series FX5S-60mr/ds: any version
• Mitsubishi Electric Corporation Melsec Iq-F Series FX5S-60mr/es: any version
• Mitsubishi Electric Corporation Melsec Iq-F Series FX5S-60mr/es-A: any version
• Mitsubishi Electric Corporation Melsec Iq-F Series FX5S-60mt/ds: any version
• Mitsubishi Electric Corporation Melsec Iq-F Series FX5S-60mt/dss: any version
• Mitsubishi Electric Corporation Melsec Iq-F Series FX5S-60mt/es: any version
• Mitsubishi Electric Corporation Melsec Iq-F Series FX5S-60mt/es-A: any version
• Mitsubishi Electric Corporation Melsec Iq-F Series FX5S-60mt/ess: any version
• Mitsubishi Electric Corporation Melsec Iq-F Series FX5S-80mr/ds: any version
• and 58 more

Published 2025-11-06. Last modified 2026-06-17.