DoS in Mitsubishi Electric MELSEC iQ-F Series CPU Module TCP Communication Function
CVE-2025-10259 is an improper validation of specified quantity in input vulnerability in the TCP communication function of Mitsubishi Electric MELSEC iQ-F Series CPU modules. A remote attacker can send specially crafted TCP packets to the affected device and cause the targeted TCP connection to be disconnected, resulting in a denial-of-service condition for that connection. According to the advisory, the effect is limited to the attacked connection and does not impact other concurrent connections. The issue affects MELSEC iQ-F Series CPU module models across all versions listed by the vendor.
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Impact, mitigation & remediation
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Impact
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Mitigation
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Exploits
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No public exploit code observed for this vulnerability.
Recent activity
3 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.
No news coverage yet. Advisories and community discussion only.
The version that knows your environment.
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Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.