CVE-2026-22790: Linuxfoundation Everest

High severity, CVSS 8.8. EPSS: 0.5% chance of exploitation in the next 30 days.

EVerest is an EV charging software stack. Prior to version 2026.02.0, `HomeplugMessage::setup_payload` trusts `len` after an `assert`; in release builds the check is removed, so oversized SLAC payloads are `memcpy`'d into a ~1497-byte stack buffer, corrupting the stack and enabling remote code execution from network-provided frames. Version 2026.02.0 contains a patch.

Affected products

• Linuxfoundation Everest: before 2026.02.0 (fixed in 2026.02.0)

Published 2026-03-26. Last modified 2026-06-17.