CVE-2026-15340 | Savannah lwIP up to 2.2.1 SMTP Client buffer overflow

October 9, 2026 Yanac

A vulnerability was found in Savannah lwIP up to 2.2.1 and classified as very critical. This impacts an unknown function of the component SMTP Client. Executing a manipulation can lead to buffer overflow.

This vulnerability is registered as CVE-2026-15340. It is possible to launch the attack remotely. No exploit is available.

A patch should be applied to remediate this issue.VulDB Recent EntriesRead More