PT-2026-107421 · Savannah · Lwip
CVE-2026-15340
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Published
2026-10-07
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Updated
2026-10-07
None
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Name of the Vulnerable Software and Affected Versions
Savannah lwIP SMTP client version 2.2.1
Description
A buffer overflow exists in the SMTP client, which can be exploited to achieve remote code execution on industrial control systems. This issue allows attackers to perform lateral movement across critical infrastructure networks.
Recommendations
Apply the immediate patch provided for version 2.2.1.
Implement runtime segmentation in OT environments to limit the blast radius.
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Related Identifiers
Affected Products
Lwip