Out-of-bounds Read in Everest Everest-Core
CVE-2025-68132
EVerest is an EV charging software stack. Prior to version 2025.12.0, `is_message_crc_correct` in the DZG_GSH01 powermeter SLIP parser reads `vec[vec.size()-1]` and `vec[vec.size()-2]` without checking that at least two bytes are present. Malformed SLIP frames on the serial link can reach `is_message_crc_correct` with `vec.size() < 2` (only via the multi-message path), causing an out-of-bounds read before CRC verification and `pop_back` underflow. Therefore, an attacker controlling the serial input can reliably crash the process. Version 2025.12.0 fixes the issue.
Vulnerability class: Buffer Overflow
EPSS: 0.002 (15.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.6 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Everest Everest-core — versions < 2025.12.0
- Linuxfoundation Everest
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Mitigation, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
Frequently asked questions
- What is CVE-2025-68132?
- CVE-2025-68132 is a medium-severity vulnerability in Everest Everest-Core, classified under Out-of-bounds Read. CVSS score: 4.6/10. Published 2026-01-21.
- How severe is CVE-2025-68132?
- Medium severity. CVSS v3 base score is 4.6 out of 10.