EVerest's unchecked SLAC payload length causes stack overflow in HomeplugMessage::setup_payload

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.

Problem type

CWE-121: Stack-based Buffer Overflow

Affected products

EVerest

everest-core

< 2026.02.0 - AFFECTED

References

https://github.com/EVerest/EVerest/security/advisories/GHSA-wh8w-7cfc-gq7m

https://github.com/EVerest/EVerest/security/advisories/GHSA-wh8w-7cfc-gq7m

x_refsource_CONFIRM

JSON source

https://cveawg.mitre.org/api/cve/CVE-2026-22790

Click to expand

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