CVE-2026-23955 MEDIUM

CVE-2026-23955: EVerest vulnerable to concatenation of strings literal and integers

Vendor Everest
Product everest-core
Weakness CWE-1046
Published January 21, 2026
Last update January 21, 2026

CVSS base score

4.2/10
Attack vector Local
Attack complexity Low
Privileges required High
User interaction Required
Confidentiality High
Integrity None

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N

What the vulnerability does

01Description

EVerest is an EV charging software stack. Prior to version 2025.9.0, in several places, integer values are concatenated to literal strings when throwing errors. This results in pointers arithmetic instead of printing the integer value as expected, like most of interpreted languages. This can be used by malicious operator to read unintended memory regions, including the heap and the stack. Version 2025.9.0 fixes the issue.

Key dates

02Disclosure timeline

January 21, 2026 CVE published
January 21, 2026 Record updated