What is CVE-2026-22790?

CVE-2026-22790 is a high-severity vulnerability in Everest Everest-core, classified under Stack-based Buffer Overflow. CVSS score: 8.8/10. Published 2026-03-26.

How severe is CVE-2026-22790?

High severity. CVSS v3 base score is 8.8 out of 10.

Buffer overflow in Everest Everest-core

CVE-2026-22790

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 stac…

Vulnerability class: Buffer Overflow

EPSS: 0.000 (10.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Everest Everest-core — versions < 2026.02.0

Weakness classification (CWE)

CWE-121 — Stack-based Buffer Overflow

References

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

Frequently asked questions

What is CVE-2026-22790?: CVE-2026-22790 is a high-severity vulnerability in Everest Everest-core, classified under Stack-based Buffer Overflow. CVSS score: 8.8/10. Published 2026-03-26.
How severe is CVE-2026-22790?: High severity. CVSS v3 base score is 8.8 out of 10.