Buffer Overflow Affecting lwip package, versions *


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.6% (48th percentile)

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  • Snyk IDSNYK-ECHOLATEST-LWIP-20746733
  • published10 Oct 2026
  • disclosed9 Oct 2026

Introduced: 9 Oct 2026

NewCVE-2026-15340  (opens in a new tab)
CWE-120  (opens in a new tab)

How to fix?

There is no fixed version for Echo:latest lwip.

NVD Description

Note: Versions mentioned in the description apply only to the upstream lwip package and not the lwip package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

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