CVE-2026-15340

Description

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

References

• https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-279-02.json
• https://www.cisa.gov/news-events/ics-advisories/icsa-26-279-02