Vulnerability · Published Jan 21, 2026 · Assigned by GitHub_M

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

Medium 4.2

In plain English

A medium-severity security flaw in everest-core from EVerest. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 9% of all known vulnerabilities).

Severity (CVSS 3.1)4.2Medium

Exploit odds (30 days)0.2%top 90.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
EVerest	everest-core	< 2025.9.0

Weakness: CWE-1046 · Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N

References

https://github.com/EVerest/everest-core/security/advisories/GHSA-px57-jx97-hrff x_refsource_CONFIRM