CVE-2026-22790CWE-121

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

High · published March 26, 2026

CVSS v3.1
8.8
EPSS
1%
Percentile
43.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00526 · 43.7th percentile
Weakness
CWE-121 · Stack-based Buffer Overflow
Published
2026-03-26T14:31Z
EPSS history
Timeline
  • 26 MAR 14:31Z
    EVerest's unchecked SLAC payload length causes stack overflow in HomeplugMessage::setup_payload
    cvelistv5