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
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.003 (18.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 19th percentile — 18.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
- Everest Everest-Core — versions < 2025.12.0
- Linuxfoundation Everest
Weakness classification (CWE)
References
- github.com/EVerest/everest-core/security/advisories/GHSA-79gc-m8w6-9hx5 (Exploit, Mitigation, Vendor Advisory)
- github.com/EVerest/everest-core/commit/b8139b95144e3fe0082789b7fafe4e532ee494a1 (Patch)
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.