CVE-2026-22790

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

State: Published
Severity: 8.8 High
Published: Mar 26, 2026
Updated: Mar 26, 2026
Reserved: Jan 9, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	8.8 High	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	GitHub_M

Weaknesses

CWE-121 Stack-based Buffer Overflow

Affected Products

Product	Versions
everest-coreEVerest	< 2026.02.0Affected

References

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

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