Vulnerability · Published Mar 26, 2026 · Assigned by GitHub_M
CVE-2026-22790EVerest's unchecked SLAC payload length causes stack overflow in HomeplugMessage::setup_payload
High 8.8
In plain English
A high-severity stack buffer overflow in everest-core from EVerest. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 46% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.6%top 53.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| EVerest | everest-core | < 2026.02.0 |
Weakness: CWE-121 · Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://github.com/EVerest/EVerest/security/advisories/GHSA-wh8w-7cfc-gq7m x_refsource_CONFIRM