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Weakness (CWE) CWE-120 Buffer Copy without Checking Size of Input 1

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TI-2026-70070 CVE-2026-15340

Buffer overflow in Savannah lwIP SMTP client

Priority MEDIUM 48

lwIP SMTP client does not check the size of inputs, potentially allowing a buffer overflow.

CVSS 4.0CRITICAL 9.3· Network · No auth · No interaction · EPSS 0.00367 · Published 2026-10-09 · Fixed in patch_125_smtp_txbuf.diff, git commit (614420f) CWE-120

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