# CVE-2026-22593

## Summary

- **CVE ID:** CVE-2026-22593
- **Severity:** HIGH
- **CVSS Score:** 8.4 (CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
- **CWE:** CWE-193
- **Published:** Mar 26, 2026
- **Last Modified:** Mar 29, 2026

## Description

EVerest is an EV charging software stack. Prior to version 2026.02.0, an off-by-one check in IsoMux certificate filename handling causes a stack-based buffer overflow when a filename length equals `MAX_FILE_NAME_LENGTH` (100). A crafted filename in the certificate directory can overflow `file_names[idx]`, corrupting stack state and enabling potential code execution. Version 2026.02.0 contains a patch.

## Affected Products

- EVerest — everest-core (< 2026.02.0)

## References

- [CNA](https://github.com/EVerest/EVerest/security/advisories/GHSA-cpqf-mcqc-783m)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.14%
- **EPSS Percentile:** 3.5

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._