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LwIP SMTP Client (2.2.1)

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critical advisory

Buffer Overflow Vulnerability in Savannah lwIP SMTP Client

A critical buffer overflow vulnerability (CVE-2026-15340) in Savannah lwIP SMTP client 2.2.1 allows unauthenticated remote attackers to trigger denial-of-service or potential remote code execution.

lwIP SMTP client critical-infrastructure buffer-overflow industrial-control-systems ot-security
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